There are 119 ratings for the drug: FLAGYL ER in the Askapatient database.

Key to ratings for flagyl er: 5-Very Satisfied: this medicine cured me or helped me a great deal. 4-Satisfied: this medicine helped. 3-Somewhat Satisfied: this medicine helped somewhat. 2-Not Satisfied: this medicine did not work to my satisfaction. 1-Dissatisfied: I would not recommend taking this medicine.

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Rating	Reason	Side Effects	Comments	Sex	Age	Time Taken and Dosage		Date Added
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2	diarrhea caused by clindamicin	mainly dizziness and weakness	I took two weeks of clindamicin as a result of a root canal. Ten days after finishing clindamicin, I started having severe diarrhea. Dr. prescribed 10 days of flagyl, 500mg 3 times per day. Diarrhea stopped and bowel movements returned to normal. Seven days later diarrhea started again and Dr. put me on 7 days of flagyl, 500mg 3 times per day. I'm in my 5th day and am not seeing any significant results as yet. Two more days to go, so we'll see. Stomach grouls with watery sounds and soft, grainy, watery, loose, smelly bowel movements. No evidence of blood in bowel movements. I'll never take clindamicin again!!! Dr. says it could take 4-6 weeks to clear this up. It's very frustrating. Is there any other treatment out there that will take care of this problem faster??	M	67			10/12/2008
4	Diverticulitis	So far no side effects. After reading what could happen, I got so anxious my doctor prescribed 2 mg of Valium and this has helped tremendously.	I am a health nut. Haven't been on antibiotics in over 20 years but Diverticulitis is an infection and 500 mg of Flagyl 3 x day plus two 500 tabs. of Cipro 2 x a day is the standard protocol. I am spacing the drugs apart and taking probiotics, drinking Keifer and eating yogurt. I'm only on my second day which is better than my first. I think its the Valium. I made myself crazy with all the negative remarks and horrible side effects I've read.	F	63	2 days		8/27/2007 Email
4	c. diff	Depression. Learned today from a health practitioner that Flagyl can cause depression. So pleased to learn that because I was getting to a "bad" place. The horrible taste, of course, and thrush on the tongue, for which I took a statin "swish and swallow" med. Exhaustion so that I am fatigued from the slightest activity. Nausea for a while in the a.m. after a bowel movement -- I never had morning sickness when pregnant -- this must be retribution. Mint gum has helped. Headache and weirdness in the head sometime -- not really dizzy, but just weird.	A health practitioner said her husband had tried everything to coat the Flagyl and found honey the best. I tried that and find it does work OK. Many of you suggest milk -- I'm told to stay away from dairy except yogurt with active cultures. What about that? I was on a 10 day course, but became ill again about 5 days off the Flagyl and also had a postive stool culture. Am about finished with another 14 day course. I hope this will do it, but recognize from talking to others and reading that this problem can continue for a long time. It is depressing to think about because I also have MS, which is enough, thank you. I had my reaction after taking Amoxycillian related to a root canal, which I'd take previously many times without problems. I fear the future and how they will treat me for infections. I'm allergic to Cipro and one other antibiotic. This is getting too depressing -- it's not just the Flagyl, but that sure doesn't help.	M	63	20 days		5/9/2006
3	intestinal prob&chronic bursitis	This is a weird, scary drug.Am on day eight of ten at @250mg three times a day. Some parts of the day I get scary episodes of breathlessness, other times intense muscle aches,nausea, dizziness, confusion. I've was so sick before taking this drug that I'm willing to go thru this but it has been very scary.		F	62	8 days		2/28/2007 Email
1	Bacterial infection	Horrible nausea, not after every dose, but each time I took it I swore I was going to call the dr. and get off this stuff.		F	61	7 days		2/24/2008
5	Diviticulitis	Bad taste, stuffy nose, dizzy, exhausted, grumpy, brown urine,blurred vision, headache.	This drug does help Diviticulitis. I am also taking Cipro. I can't wait for the 10 days to be over. Taking Flagyl prevents the C-Diff issue if you are taking Cipro for an extended period of time.	F	57	10 days		12/12/2006
3	pouchitis	extreme fatigue, lethargy, just felt out of it and spacey. Some nausea and constipation. Can't work.	I'm at day 5 of 500 mg 3X/day; will take for at least 14 days. Nowhere did I see, or hear from my doctor, anything about these side effects. My kids are calling me "space-mom".	F	57	14 days		7/6/2009
2	diverticulitis	metallic taste in mouth, headaches	The tenderness in my side and the diarrhea has not cleared up after 8 days on the meds. Has anyone else ever had this happen? this is my first time with diverticulitis. I'm very concerned something else is going on.	F	57	8 days		10/18/2007 Email
1	vaginitis	I felt extreme fatigue, napped in the middle of the day, hot flashes, weakness and pain in legs,nausea, headache, depression, sore throat.	I only took this for two days but awoke the third day with extreme headache and vomited. Called Dr and he said stop taking it, even though I was supposed to take it ten days. I hope the vaginitis is fully gone, as I would not want to take this medicine ever again.	F	57	2 days		7/28/2007
4	Diverticulitis	DREADFUL metallic taste, nausea, bloating, weakness, dizziness.	It worked for me, BUT...It's the most awful drug I've ever taken. It's the second time I've been on this and I dread every dose! It seems to dissolve before even it even gets into my mouth, and leaves the most HORRIBLE taste that NEVER goes away. No matter if I take it with food or wash it down with a glass of liquid. The bloating and nausea are constant - I have to force myself to take each & every dose. And I have to take it 4 times a day for 10 days. The very least they could do is coat it with something. Yuk.	F	56	10 days		10/31/2009
1	diverticulitis	Bad taste in mouth (not "metallic," just horrible), out of it feeling. Side effects are like a sickness in and of themselves.	I have found that if I coat the pill in applesauce (put applesauce on spoon first, then lay pill on top and cover it with applesauce), it goes down easier. Still take with water. Make sure applesauce is all over the pill. My dissatisfaction rating (1) is NOT due to the fact that it doesn't work. I just would not recommend this drug to anyone if there is an alternative that is not so debilitating.	F	54	7 days		3/2/2006
1	diverticulitis	severe, make-you-cry stomach cramping	Cramp came on suddenly at beginning of third day. Lasted 6 hours without relief, even vomiting did not help. disconntinued meds and gradually felt better. one week later had another bout of cramping for six hours. I'm worried it will happen again.	F	54	2 days 500 mg. 3X D		3/5/2010
4	Diverticulitis	Terrible metallic taste, sleeplessness, sore joints, dizziness, bloating, cramps.	I toughed it out the first time I had to be on this and Cipro at the same time. It worked but I feel like I'm going to throw up just thinking about taking the next dose. I try to breath through my mouth to dry it out before taking a dose with a huge glass of water. Eating helps even though I don't feel like it. I'm going to try the PB and milk next dose.	F	52	10 days		1/5/2008
1	h. pylori bacteria	awful metallic taste with very fuzzy mouth/tongue/upper trachea which makes all food taste terrible and I have no interest in eating. Difficulty concentrating. Tiredness.	I took a very complete probiotic with each dose (4/day for 7 days) which I believed helped prevent vaginitis which as been a commom side effect for me with antibiotics in the past. As I wasn't having any extreme symptoms with the bacteria I cannot say how well it has worked. Thought a week of treatment was doable but not so sure.	F	52	7 days		12/11/2007
1	diverticulitus	sick constantly, and became very badly depressed, itching, bruising, difficulty walking, thrushhad one particularly bad nightmare. Had not suffered from depression or nightmares before.	Would only take it again in life or death emergency.	F	52	5 days 400 3X D		3/8/2010 Email
1	diverticulitus	sick constantly, and became very badly depressed, itching, bruising, difficulty walking, thrushhad one particularly bad nightmare. Had not suffered from depression or nightmares before.	Would only take it again in life or death emergency.	F	52	400 1X D		3/9/2010 Email History
4	Post Surgical Bacteria Infection	Intense Burning Eyes, general eye pain, significant sensitivity to light, better to close my eyes and justlay down.	Trying to stay the course because it is killing the infection. Need to hold on for 6 more days. Taking 500 mg. 1x per day. Took the liquid suspension, as I am allergic to the binding ingredients used in pill form, such as wheat starch, maize starch, dextrose, maltodextrin, (wheat, corn and soy binding agents)	F	51	10 days		4/6/2008
4	C-diff	Overall feeling of malaise, heart burn, nausea, loss of appetite, depression, and the worst anxiety! Also clumsy and feel like I am in a fog. I really cannot concentrate at work when on this medication. I found Zofran helps with the nausea.	On Day 14 of this medicine and plan to finish it. All the side effects are nothing compared the the cramping and diarhea from C-diff. Finish the meds so you do not get C-diff back. I am hoping one course will take care of it.	M	50	14 days		4/4/2008 Email
4	C Diff	Severe nausea 24/7. Bad taste in mouth, "furry" tongue. Bloating. Depression and tireness. I've been off two days and still have the nausea and bad taste. When will it go away?	This was the longest 14 days of my life. I hated this drug but figured I had to finish it. I strongly recommend buying empty gelatin capsules, size 00, to put pill into so you won't taste it. I also took probiotics 1/2 hour before the Flagyl. The C diff was from Clindamycin for lingual tonsillitis. Yesterday, one day after finishing Flagyl, I had another bout of diarrhea. I am hoping it was from introducing certain foods back into my diet too soon. I haven't had a problem today. If I have to repeat this again, I heard Zofran is available in a generic form. I wonder if this would help the nausea. I missed a lot of work because of it.	F	50	14 days		9/22/2007
2	Bacteria Infection/Colitis	Severe stomach cramps, diareha, chest pains, heart burn and painful indigestion, confusion, fatigue, ab pain very bad. Dizzy, tired, depressed, crying all day.	Worse drug I've ever taken. Most side effects I've ever had and I've been on alot of medicine to fight RA this is the worse but it is for Colitis and bacterial infection in my stomach?	M	49	4 days 500 3X W		6/11/2010
2	Gastrointestinal upset	Horrible experience - day 3 of a 10 day regimine. This medication seems to be making me sicker. Today I developed a disgusting bitter taste in my mouth. Even water tastes horrible and I'm already dehydrated. Great! My diarrhea has become worse with the medication and it feels like I've got fireworks going off in my gut. Stopping it immediately.		F	49	3 days 500 mg 3X D		7/27/2010
1	Diverticulitis	I am on my 2nd 14 day course of 500mg 4 times a day. I begged the Doctor to give me something else. This stuff is poison! I have every horrible symptom from joint and muscle aches,dizziness, disoriented, blurred vision,horrendous headaches,nausea..... Does anyone know if there is another drug that can substitute for this? My doctor says no.I think she believes I'm just a whiner.My life is completely on hold for now.I can't drive or do the many other things I did daily due to the dizziness and heaaches.Did I mention depression? I cry more times in a day than I normally would in months.		F	49	4 days		10/23/2006
4	Giardia	Perisistant headache. Came on about half an hour after taking each dose and became quite debilitating as course continued.	I expected some side effects because if the drug is strong enough to work, it will probably have side effects. Not nice but I can live with it. Taking 200mg 3x daily. If I were taking a stronger dose for longer I would have have to reconsider taking this drug.	F	48	7 days		12/13/2009
3	abdominal infection	the absolute worst headaches of my life, coupled by nausea. The headaches were so bad I had to take double the pain medicine to relieve the pain for just 4 hours. Lymph nodes on my neck began to swell,, I quit the medicine 2 days before I should have. I have been off the meds for 2 days and the headache is still there, but much duller. It did help me feel better	ask your doctor about alternatives, if there are any I was in the hospital and the IV form had the same effects. 2 days IV and 5 days orally.	F	48	7 days		7/31/2009
3	Lyme disease	Lack of appetite, thirst but water tastes like fish, bloated feeling (look like 7 months pregant although I eat less than a friend who weighs 125 lbs), dark urine, stomach pains, several bowel movements a day, blurry vision, weird headaches, can't get up in the morning and need afternoon naps, no energy, no drive to do anything, memory problems.	I'm on Flagyl and Zithromax (1500 mg in total for both per day) and have been since March 2010; probably still to be on them for a few months. Taking 50 billion cells of Probiotics, a multivitamin, milk thistle and sometimes Resveratrol to help. The meds did help with the Lyme symptoms, but I'm afraid it is doing a number on my gastric system or something, being on it so long.	F	48	4 months 500 mg 2X D		8/13/2010 Email
1	post root canal pain	tired, depressed, metallic taste	don't think it worked for me, but i certainly noticed the side effects	F	48	7 days		11/9/2008
1	Diverticulitis	Nausea, weird tingly sensations in my body. I felt like a truck ran over my body. I ached like I had the flu. Terrible taste in mouth, diarhea, RASH OVER ARMS AND LEGS after 2nd day. THROAT SWELLED and had to discontinue.	I have taken Flagyl in the past and did not have these symptoms. I took the generic brand. This time it was an AWFUL experience. I wanted to keep an open mind and try to get past the nausea and take for 7 days, but when I broke out in hives and my throat swelled, the doctor took me off immediately and said allergic reaction.	F	48	2 days		12/29/2007
5	Infection saliva gland	1st few days not much but was on strong pain killers and other anti biotic, 15 tablets a day in all, so was completely stoned . Im taking them with augmentin ,its day 8/10 side effects are bad dreams ,trouble sleeping,heart burn but the latter may be down to the augmentin,when i wake up its like having a dreadful hang over,dry mouth etc, drink plenty of water when taking these tablets is my advice when i didnt I got headaches .. and take when having a meal if you can,Do not drink and if you are a drinker I think the withdrawal symptons Add to the problems it has in my case,never realised how dependent i am on my couple of beers a day .. getting the weekend out of the way helped,I dont even feel like a drink now..	they work :-) metronizadole 400 gms 3 a day x 10 days 2 days to go as i said im taking them with augmentin roll on thursday :-) it feels like a case of kill or cure at times but stick with them it took 3 days for them to really start working.. G LUCK	M	47	8 days		9/25/2007 Email
4	intestinal bacterial overgrowth	bad taste in mouth, upset stomach, headache, leg pain, depression, insomnia, chest discomfort, multiple bowel movements per day and generally just feeling awful all over.	I was prescribed a 7 day course of generic Flagyl and cipro for my condition. After the first course I felt great for about a week and then the symptoms came back so now I am on a two week course. This time it is much harder on me and I don't know if i can get through it all. I am on day 5 right now.	F	47	14 days 500 3X D		5/1/2010
5	C. Diff	none.	I might not have had any side effects because I was also on Entocort (anti-inflammatory), Xifaxon (anti-diarrheal for sprue), and Fluconazole (antifungal medication). These other medications are to treat my Celiac Disease and the yeast infection (which I obtained while in the hospital along with the C. Diff). I was so sick, that I probably didn't notice any of the side effects. I can tell you that I got better everyday. So, it worked!	F	46	2 weeks		10/22/2007
5	Bacterial vaginosis	None, except for stomach upset the first day only.	This worked FAST and well. Infection never returned. I was taking 500mg a day for a week.	F	46	7 days		6/5/2008
1	BV	Extreme, make you cry, stomach cramping	The 1st 2 days I did ok, mild stomach upset, after the 1st pill on the 3rd my stomach cramped unbearably with vomiting. I did not take another dose. Today-4th day-I feel wiped out, pain in stomach, like a I could have diarrhea and generally out of it-hope this goes away quickly. I will NEVER take this drug again.	F	46	2 days		5/17/2007
5	Giardia	Nausea and fatigue.	The symptoms of any parasitic infection incl many listed on this site include extreme weakness, fatigue and nausea...I have taken Flagyl in the past and with the exception of needing to take it with food and plenty of water, it really is not a problem. The Giardia is MUCH WORSE than taking the Flagyl. I think many people have panic, distress and/or depression already before they take this drug as a result of (perhaps) prolonged unresolved health issues. The health issues realy take their toll and with parasites, sometimes the diagnosis is slwo in coming with most us already having taken multiple drugs before we get to Flagyl. (500 mg x 2 times per day for 7 days)	F	45	7 days		7/6/2008
4	Possible C.difficle infection	Initially, it felt like I had burnt my tongue, that has lessened, but not gone away. Fairly constant metallic taste in mouth (will try the idea about chewing gum). Fatigue, but that could be from 2-1/2 days of water/Gatorade only) and now most things taste terrible. I occasionally get the chills so bad that I immerse myself in a tub of hot water. Bouts of being fuzzy-headed.	Makes food taste terrible. Have noticed that there are some periods of time where the terrible taste goes away. so far,I have had success consuming the following: Milk, yogurt, poached eggs, nectarines. Taste failures with: Oatmeal, toast, chocolate (yikes!). I'm in day 3 of a 10 day, 500mg AM and PM dose. I'm hoping that the symptoms will wane. Thanks to all previous people posting feedback. It's good to know that I'm not imagining the symptoms and to get ideas to resolve them.	F	45	3 days		9/8/2007
3	Diverticulitis (with Cipro)	Depression, insomnia	Five days into a 10 day course of Flagyl, paired with Cipro, for abdominal pain, suspecting infected diverticulum. I've taken Cipro before without any side effects aside from loose stools. But this was my first time on Flagyl. The taste is horrible, yes. And I have to crush these horse pills to get them past my gastric band. I can power thru the depression, as long as it doesn't get worse. But the sleeplessness SUCKS. I'm so tired, but can't sleep more than a couple of hours before waking and unable to return to sleep.	M	45	10 days 500 mg 3X D		2/18/2010 Email
1	intestinal parasites	anxiety, light-headedness (to the point where i had to stop driving) and extreme muscle weakness. it was a nightmare.	after visiting my dr. after three days of taking this, she told me that these were indeed side effects that 'some' patients experience. i had read up on the site before i took them and thought the negative comments were a bit hystrionic; i digress...this was one of the worst side effects i have experienced. :(	F	45	3 days		2/16/2007
1	c diff	feel like i have mono. severe bloating.intermittent abd pain.intermittent nausea.... i think i'd rather have the symptoms of cdiff again instead of this. i also developed 2 fever blisters and no have an infection in my navel. i think flagyl is screwing with my immune system		F	45	6 days		11/16/2008
5	Lyme Disease	Every day would bring a new side effect. I'm not sure if it's the herx reaction or a side effect of Flagyl. I usually got blurry vision. I fell three or four times during the week, until I realized I needed to be careful. This drug seems to make you more accident prone. Today I woke up and I have hives on my back and hip areas. Again, it could be the Lyme Herx or a reaction to the drug. However, for me, someone with chronic Lyme, this drug helps. The cure is defenitely not worse than the disease. It has helped with my cognitive problems as well as my joint pain. I found that I had a rapid heart beat and some skips. I did some research and started taking magnesium supplements. You have to take it several hours before your antibiotics..but ALL of my heart symptoms cleared.		F	43	30 days		2/26/2008 Email
1	Diahrrea Bug Picked up in Mexico	I TOO am so glad to have come across this page! I thought I was just being "weak and wimpy". I suffered through 5 days, so a total of 15 pills with EXTREME feeling of needing to sleep or nod off...zero energy, a dull ongoing nausea, and a headache or two thrown in there....Oh and also very thirsty, but that's nothing compared to the other things.	Yesterday I threw the bottle in the trash, with 7 pills left in it. I literally could not take it anymore...Absolutely horrible. I am a social drinker, so i was glad that both my doctor and the pharmacist both SPELLED IT OUT for me regarding drinking... "If you drink even as much as one sip of alchohol on this medicine, you may find yourself in the ER with violent vommiting"....they BOTH said don't even use mouthwash. I can't imagine even WANTING a drink while taking this med ! It has been about 30 hours since i swallowed the last pill and i STILL feel the nausea and the fatigue.	F	41	7 days 500 mg 3X D		8/4/2010
5	Abscessed Tooth	Nausea, fatigue, loss of appetite, awful taste in mouth, depression (sadness), overall sense of uneasiness, lack of energy/motivation, occasional loss of equilibrium, could fall asleep at any moment throughout the day but an inability to stay asleep (insomnia)	This antibiotic is very effective (I had the pleasure ( : of taking this drug before for diverticulitis), but it comes at the cost of some nasty side effects. I have been taking it for 6 days (tomorrow is my last day!!!) and it relieved the tooth pain within 48 hours. I made the decision to tough it out for the benefits, and it has paid off.	F	40	7 days		6/4/2008
4	Bacterial vaginitis	Extremely tired, nausea, lack of energy & depression, headaches, lack of focus, darker urine color.	This is the second time I have been on Flagyl and I don't remember the side effects being as bad the first time. The drug works but you have to pay the price it seems. I was prescribed a 7 day dose, but I am only on day 5 of the meds and I am going to stop taking them because I feel so awful. Between the depression, exhaustion and nausea I can barely live my life. 5 days has never taken so long..this has been rough.	F	40	5 days		6/27/2009
1	amoebas	nausea, rapid heart beat, fatigue (a few steps and I'm exhausted) anxiety, depression, tingling/numbness in arms and legs (had to finish typing with one hand)	I was prescribed 500 mg flagyl tid for 5 days. I consider myself an optimist but if my dr tells me that I have to be on it for another five days, I would rather not wake up. Luckily for me I'm able to separate my feelings from my actions.	M	40	4 days		8/31/2009
1	infection after surgery	extremely nauseated after each dose, to the point I actually did vomit a few times. This happened everytime I took it. Also confusion, dizzy, and fuzzy vision. It tastes horrible but that was the least of my concerns. After I hallucinated by seeing a mouse run across my desk I went off it, had the doc call me in something different. Immediately after stopping flagyl I broke out in hives all over my body. This drug is HORRIBLE		F	40	5 days 500mg 2X D		3/18/2010
1	possible C.diff infection	I was on two rounds of flagyl after diarrhea associated with taking Clindamycin. It is hard to say whether the flagyl made my diarrhea worse or if what was causing my diarrhea simply didn't respond to the flagyl. Bottom line: this stuff was nasty and didn't help control the diarrhea. My new GI prescribed Vanco but I'm worried about taking it since every time I've taken a prescription drug it seems to make me feel worse.		M	40	14 days		7/8/2007 Email
3	Amoebic Dysentery	affected taste, over-production of saliva, dry-retching, nausea, insomnia, confusion, sweating, unable to concentrate	Day 3 of a 7 day course. Confined to the house. Everything tastes dreadful. I thought our butter was rancid and water was contaminated. Really difficult to eat due to extreme nausea and continual dry retching but it does help to feel more stable having something every couple of hours. And keep drinking water. My tongue is coated white and I keep producing so much thick saliva that tastes like the pills. YUK. Feel kind of weak, like I've over-exercised, all I've done is climbed the stairs. And I can't lie down - it makes my stomach cramp, gurgle and ache continually. If I do get any sleep it is for an hour or two at a time, that is it. If there is an alternative, DO IT. Giving a 3 rating cos I don't know if it will clear my infection, will update after day 7 tests!	F	38	7 days 500mg 3X D		5/17/2010
1	UTI and possible bacterial vaginosi	dry mouth (mild), numbness, strange feelings (emotions seemed to be more out of control), vision problems (photophobia, dim vision, dry eyes, itchy eyes), dry itchy skin. nausea, headache, diarrhea, felt like I couldnt pee... The WORST symptom was the dry nose. The inside of my left nostril was so dry that I ended up with a gigantic sore inside it. I ended up having to go to the doctor for that. (he told me to use small amounts of neosporin in my nose for a few days. if it doesnt work, I've got another (argh!) antibiotic to take for that)	Probably will never take this one again. Only good thing about this abx, is that I'm trying to figure out if I have Lyme disease. Had western blot tests that came up with some bands of lyme bacteria, but not enough for a positive test. I read that Lyme bacteria "hides", but that abx can kill the bacteria and make it show up on a test easier. So, maybe this will help me figure out if I have Lyme or something else.	F	38	7 days		8/30/2007
1	gastritis (misdiagnosed)	Antibiotic induced colitis when combined with amoxicillan. It almost killed me.	If you are taking this med and feel abdominal pain, nausea and/or diarrhea STOP TAKING IT AND CALL YOUR DOCTOR ASAP! Then take some acidophilus.	F	38	3 days		10/18/2007
5	C Diff	I have been on flagyl both in hospital and out. I was told I have to be on it for 3 1/2 wks but God willing I get off it sooner. I have had a rough time with this med. It gives me a racing heart. It puts me in a slump. It does not allow me to enjoy eating. It causes me to have night sweats. It's hard to tell whether you are better or the effects are strong that they make you crazy a bit. I hope all on it don't have to go through that.	Also, was anyone ever treated with an alternative of flagyl? If anyone has the same effect, let me know. Thank you.	F	37	21 days		3/18/2008 Email
3	Abscess	Metallic taste, tiredness, dizziness, strange feelings in legs (like I had been sitting too long)	I've been on two courses of Flagyl (500mg, 4x/day) and Cipro together (750mg, 2x/day). I'm pretty sure all of the side effects were coming from Flagyl, but can't be sure. The idea to put the pill into an empty gelatin capsule is BRILLIANT. I haven't tried it, but would highly recommend it. First course (10 days) was 1 month ago. I could live with some dizziness, tiredness, lack of concentration, nausea. This got a lot worse at the end of 10 days. Had to start the same course 3 weeks later and started vomiting also. Called doctor and doctor told me to take a break. I've been off the pills for a day and I'm a new man. I hope I never have to go back on Flagyl again. I cringe just thinking about the pills and the taste in my mouth (which doesn't go away after taking the pill, but is worst when taking the pill). It really is bad. May get rid of the bacteria, but if there are other pills you can take...take the other ones.	M	37	10 days		2/22/2008
2	unexplained diarrhea for 6 mos.	Nausea, nausea, nausea, confusion, extreme depression, insomnia, crazy vivid dreams, mood swings, total exhaustion, sore all over, hot and cold waves, metallic taste, breathing heavy, forgetfulness, just despondent, apathetic, tired, sore and SICK.	Also feel like I'm losing my mind. I am seeing my doctor today and asking him to commit me to the hospital; I don't feel like I can cope here at home anymore. I dry heave all morning, can't eat and am barely drinking enough water. I burst into tears several times a day. My husband thinks I'm making myself sicker by not handling things better. I've been so sick for so long at this point, have tried everything to feel better, but can't help but feel like it's out of my grasp. I think the best thing for me is to be on a drip for rehydration, nutrition, pain relief, and nausea. Have had to cancel a lot of work days, thought I could be recovering by now, not sure if it's the *whatever* leaving my system, the Flagyl, or if I'm just not being cured by the Flagyl and am still experiencing the phantom infection. First 2-3 days on the drug I thought I was getting better, started feeling sick again yesterday afternoon, got worse from there and today is not good at all. I don't want to st	F	37	5 days		7/17/2007
1	tooth abcess	After taking 2 tablets(400) I felt breathless. Got a weakness during the night along with a tightness in my chest,lack of oxygen, severe back ache, period like cramps and spotting, nausea and dizziness.	I wouldn't take this drug ever again. Never experienced this type of reaction to any drug. I thought that I was having a heart attack. The whole reaction lasted for 2 hours. A very frightening experience. I was also on a course of clonamox 500 for the previous 4 days.	F	37	1 days		10/6/2006
3	tooth abcess	nausea, headaches with vision disturbance, depression, anxiety, stomach ache, diarrhoea, feeling light headed, very, very tired, muscle pain, dry mouth, dry nose, heart burn, thirst, feeling as if I had the flu.	It helped heal my tooth abcess, but I think the side effects are very powerful and quite frightening. It helped me a lot to read that I was not alone in experiencing this, as I began to imagine that I was more ill than my dentist suggested. Apart from the headaches and the tiredness I found the depression by far the hardest part. Spoke to a friend who took this medicine earlier and she had the excact same experience - topped with breathing difficulties. Would definitely not recommend it to people prone to or suffering from depression and/ or anxiety. I've still got two days left before I'm done taking this drug, and I hope my sideeffects will disappear immediately.	F	36	8 days		10/10/2007 Email
1	rosacea	none - yet?	according to the package insert, metronidazole causes cancer in mice and rats but not hamsters. I'd rather have rosacea than cancer. (I was taking the MetroGel version of this drug.)	F	36	5 days		3/22/2006
1	BV	AWFUL,AWFUL metalic taste!! Also caused yeast infection, so finished this to start taking another med!		F	36	7 days		6/25/2007
4	Lymes	Bad taste in mouth		F	35	2.5 months 250 2X D		6/22/2010
4	Giardasis	Slight headaches in afternoons Detectable malaise and some irritability. None of the other, more unpleasant ones mentioned in this list below...	Fortunately, I've had no huge negative side effects for the last 7 days (I'm finishing day 7, the last day, today). However, I'm not completely convinced I won't have to do one more course of this stuff -- I feel 98%, not 100%. Didn't feel the improvement in my system until days 3 and 4. My suggestion is drink lots of water and stay away from foods that irritate this condition, particularly fatty foods. I stuck with breads and simple things and improved significantly after day 4. Other reports from other users made me scared of this drug, but it turned out to work very well.	M	34	7 days		3/16/2007 Email
1	bacterial vaginitis	I feel just awful!! I cried to my husband the second day and told him I literally felt "like I was dying". I am completely out of it, my heart is racing and fluttering, I'm dizzy, nauseated with no appetite, constantly breaking into sweats, and very emotional (i'm usually a pretty solid gal). Also, the taste in my mouth is terrible-I feel like i'm chewing on aluminum foil. I only need to be on it for five days so I'm going to tough it out. Unfortunately, I am finding it very, very difficult to concentrate on my school work, even my vision is blurry (I'm in nursing school-tough stuff!) and hope it doesn't effect the grade on my next test. There must be a better med out there. Advice-if you are taking any meds that may make your HR increase (ex. pseudoephiderine) STOP! It will only make you feel that much worse. :( :(	I suggest trying another medication first. I am a very healthy, active female in her thirties and I am finding it difficult to drive, exercise, or even read on this medication.	F	34	5 days		9/22/2008
3	Mastitis	Nasty taste in my mouth, fuzzy vision, tired, nausea, heartburn. Oh and did I mention the taste??	Also taking Dicloxacillin...swelling went down alot within 24 hours now seems to be slowing.	F	33	10 days		1/16/2008
2	Bacterial Vaginosis	Fatigue,Hot Flashes and breaking out in sweats all night. Felt like a continuous fever. Muscle pain, Weakness,chills, terrible headaches and so, so lightheaded. Anxiety, depression, mood swings, nausea,irritability, poor concentration,	Horrible side effects. I was unable to take recommended dose as twice a day. Began only taking at night because I could not function at work. I am so sick with nausea, lightheaded,headaches. The hot flashes are extreme. I am so irritable. I have been having extreme difficulty with concentation and visual disturbances that I am worried driving.	F	33	7 days		11/13/2007
2	BV	Dizzyness, metallic taste, nasuea, feeling depressed.	i hate this stuff. but it did clear up my BV. I cannot put anything vaginally due to LEEP, but ladies if you have BV and can do a cream DO IT rather than the pill. It is more expensive but none of these side affects.	F	33	7 days 500 2X D		7/3/2010
2	Bacterial Vaginosis	Horrible metallic taste- like having a mouth full of pennies. Nausea, developed pasty brown/tan vaginal discharge.Irritable.Hot flashes.Stomach pain.Dark urine	Took with water and food. Was really concerned about the brown/tan vaginal discharge untill I saw multiple posts on this site.Nautsea lasted untill I ate something.Dark urine had me nervous also.	F	33	7 days 500 2X D		8/26/2010
5	BV	Very tired, head aches, joint pain, nasty taste in my mouth	READ THIS!!!!! If u are taking flagl for a BV infection, I know that the side effects totally suck but if u want it gone...u must take it all. I hated the way it made me feel but it totally worked	F	31	7 days		1/6/2010
4	Vaginal / Yeast infection	I have been crying a lot, it brought about an energy slump/ I thought I was extremely lazzy.I am constantly in need of sleep and there is continous neuseua.The mettalic taste in my mouth is bearable but I have to take a lot of milk or lemon drops.There is also an increased tenderness on my breasts and am bloated.	I am taking this together with Doxitab ,but I dont think its side effects are that nasty.Is there a generic version of Flgyl, the taste is just horrible ,but I must say the medication is very effective, I got relieve from most of my symptoms withing ten hours of taking it.	F	31	10 days		4/14/2008
4	BV	Nausea, Dark Urine started on day 4 of 7, Brown dishcarge started on day 5 of 7, Metallic taste.	I was put on this medication due to BV in the very beginning of my pregnancy. I am glad I found this site to ease my mind otherwise it would have been the ER in the morning. During pregnancy you don't want to see dark urine much less brown dishcarge with no explanation.	F	31	7 days 500 mg 2X D		5/31/2010
4	Bacterial Infection	Metallic taste, loose stool, sensitivity in skin, some nausea	The sensitivity of the skin didn't come until the end of my 2-week regimen which I thought was wierd. At first I thought it was just dry skin but when lotion wasn't helping and it seemed to spread from just my hands to arms/legs as well, I started to research the drug some more. I really noticed it when washing my hands (the water temperature lasted even after my hands were dry) and when holding my kids (they seemed hot like they had fever, but they did not). I had taken this medicine before for a shorter time with none of these effects, and wonder if it doesn't affect the skin unless it's in your system for a longer period. Anyway, hope this helps anyone else out there!!	F	31	14 days		4/28/2007
2	intestinal parasites	I am SO tired all the time. And I'm dizzy, too. Other than the horrible taste in my mouth, the worst side effect is that I can't seem to concentrate. I lose my train of thought, I can't focus and I'm extremely cloudy. And my leg muscles feel week, like I've been skiing all day, but I've barely walked at all.		M	31	10 days		6/29/2007
1	bacterial infection	Broke out with hives. My experience taking Flagyl was worse than having the infection.		F	31	2 days		7/4/2006
1	colon inflammation	i am taking Flagyl the generic(Metronidazole for a colon inflammation due to 6wks on antibotics that causes a colon inflammation found on ct after left side pain under rib.detected colon inflammation.I was on macrobid,cipro,sepra,macrobid,for a uti i never had,Turned out i had group b strep from c section surg.I had to change DR.'s to a new OBGYN they found GBS they treated it with amoxcillion.after that med.i developed a pain in left side.I was then pos.in CT results for a inflammation in colon WBC was neg for infection.This med.makes me sick to tummy but not throwing up,bad taste in mouth,chest pain.and bad organd pains all over from time to time they feel swollon,my heart feel like its taking a trauma not sure if this is good but chest feel like its not to healthy,cvs and walgreen said to finish it these are side effects also i am having burning in lower pelvis and sometimes burning slightly from urinating.no fever.my MG are 250 three times daily for 10 days.I am not even through 3		F	31	3 days		12/25/2009 Email
5	Giardia	diarrhea from the giardia. metallic taste from the flagyl, but that is it!	taking 2 pills a day for 10 days of 500mg. could tell it was working after the 2nd day. i did not have any crazy side affects like the ones i have read on this site. this pill doesn't make you crazy or sicker people!!! if i were any of your spouses i would have you committed. if you have giardia or c-diff take this medicine! note, flagyl does not fix emotional problems nor does it cause any...get a grip!	M	30	10 days		2/20/2009
5	Bacterial Vaginosis	Almost none... perhaps bloating and dark discharge but these might be attributed to pms. I'm on day 4 of 7 and it's pretty much cleared up. The worst is the gag-inducing bitter taste of the stuff!!	I am prone to UTIs, which means I then have to go on antibiotics (ABs), but the ABs tend to mess with the flora balance, leaving me with BV... that's where the Flagyl comes in. Its taste is dreadful, but I think I've found a solution to get rid of it. Chocolate coating, a la The Princess Bride. Melt a small hershey (or dove dark for me) bar in the microwave, coat each pill and set on foil to dry (easier to peel off). DO NOT eat the chocolate afterward!! It'll taste like the pills. WASH, not just rinse, out the bottle and replace the pills. Voila, no bitter pills down the throat for the duration. Hope this helps you guys!	F	30	7 days 500 3X D		3/1/2010
3	BV	Upset stomach, nausua, nasty bitter taste, unable to eat due to nasty taste it gave everyhing even water, stomach cramps, thick dark discharge, dark urine, crazy mood swings, thought my antidepressants wasn't working, wanted to harm people, vision funny, sharp cluster headaches, itchy	Had to take 3 nasty lil death pills at a time because they only carried 250mg vs 750mg precribed.... very hard stuggle to take pills. would take serveral hours to be able to take the one dose. would have been done in 7 days but taking it makes me depressed cuz its so bad and nothing sits right in my stomach. I will give the dip in chocolate a try.. pray it works. I want to be done with them already. :( It would help if these other side affects where listed on the meds cuz I really thought something was wrong wih me until I came across this site.	F	30	7 days 3 x 250mg 2X D		4/15/2010
3	Crohn Disease	sharp metallic taste, dryness of mouth, minor weakness in hands or feet, dark urine	Not bad - its a rather powerful antibiotic.	M	30	1.2 years		9/11/2007 Email
3	Bacterial/Yeast Infection	Extreme depression. On the first 4 days everything was ok. Just the usual stomache aches & pains with antibiotics. By the 5th day I was having a few anxiety problems byt the 5th night I was having uncontrolable crying & felt horrible. 6th day I was very dehydrated, nauseated & passing out. This is when the depression kicked in real bad. Had to stop taking it at this point. Messed with my emotions extremely bad!	If you do have depression problems tell your doctor because this is not the medicine for you!	F	30	10 days		6/4/2009 Email
2	bacteria infection (c-dificil)	Leg pain,neasua,depression-feeling lost and helpless,sleppless, rapid heart rate, "Metallic" Tast in mouth and "oh yeh" I did say "Depression"	This stuff is BAD! I was prescribed this drug for over use of antbiotic, the first few days I felt better I seem to be getting back to normal with bowel movments. My Dr. called me and told me to stop taking med, bowel test came back negative. 4 days later I woke up in the same state. I now have been back on it until next set of test come back and I woundered why I feel so sick on top of my problem, until I read up on this drug. I feel realived that I am not the only one having these syptoms. Is there not another drug?	F	30	10 days		9/8/2007 Email
4	C Diff	Soooo foggy, dizzy, light headed, naseaus, panic attacks, hot feeling in chest, tired....this is terrible	I hate my life while I on this. I feel like my heart is gonna stop.	M	29	14 days		6/29/2009
5	Intestinal Parasites	While taking: Headache, nausea, dizzyness, confusion/lack of concerntration, anything wet tasted like metal, fatigue, muscles twitching uncontrollably, depression. One day after: extreme fatigue, pain in muscles all over my body.	I was taking 750mg 3x daily x 10 days. While it did it's job in killing the parasites, I felt like I was slowly being poisoned to death (to the point, I wanted to help it along LoL). I dreaded each and every dose. I could not enjoy life. I would go to work, come home and sleep until it was time to get up and go back to work. My doctor advised this medication would be "rough" (I am sorry I under-estimated him). I would not advised attempting to operate a vehicle while on this medicine. It proved very difficult with dizzyness, confusion and inability to focus... almost like driving drunk (if you have, shame on you! :-) ). I will leave you with this thought, if your doctor can give you something else other than Flagyl, I highly recommend you explore that option.	M	28	10 days		6/4/2009
4	possible bacterial infection	I felt really gross beginning the second day of my treatment. I had a constant bitter taste in my mouth. Water tasted really, really bad to the point of making my stomach turn. I had bouts of dizziness. Most of the time I just wanted to lay down with my eyes closed.	I believe this medication is effective, but you will definitely feel nauseated and just overall gross while taking it. I think there may be something just as effective that isn't so harsh.	F	28	7 days		1/8/2008
4	VAGINITIS	I had to take flagyl twice, the first time my infection didnt clear. I was put o it again along with another antibiotic. It has been a week since I have finished and I am experiencing joint pain, numbness and tingling in my hands, arm and feet. I have tremors/ chills, similar to like hot flashes. I have read so many responses to this medicine and Im not alone. The fact is, doctors say that the side effects I named are the more "UNCOMMON" but it doesnt mean that you wont experience them! Also, I was treated in the emergency room and I probably should've waited to go to my OBGYN simply because I was on two different antibiotics, still taking birth control, and diflucan. Ay one else experience these symptons after taking flagyl?		F	28	7 days		3/20/2006 Email
2	Bacterial vaginosis	I too seemed to get almost all of the UNCOMMON side effects. I didn't get the metallic taste but holy DEPRESSION. I RARELY cry, I'm usually overall pretty happy and have energy to do my fitness routine but this made me feel awful. I cried a lot and my mood was just at an absolute low. Lots of nausea, no appetite, my joints hurt, NO ENERGY, felt uncoordinated, could NOT sleep and the weird UNCOMMON side effect was rectal pain - everything seemed to get swollen and just overall really painful and THEN..... A YEAST INFECTION!! YAY ME!! Never again Flagyl, never again.		F	28	7 days		8/5/2006 Email
4	Bacterial Vaginosis	dark urine, limb tingling and the sensation of my legs collapsing right under me (though they never did) nightmares, fatigue, metallic taste in mouth, no chest pains but pain in lungs and feelings throughout stomach and lungs of spasms, thought I was going to die from the stuff.	Sorry I can't remember the dosage but I threw the bottle away as soon as I was finished taking the stuff, then I found this website. While the drug does work in clearing up BV and other bacterial infections I wonder if the drug company should include a type of therapy to heal the body after taking the stuff. I went to whole foods and loaded up on probiotics but I wonder what other damage has been done. Sure, flagyl kills bacteria but what else is it killing in our bodies that might need some repair and support after the fact?	F	27	7 days 1X D		4/27/2010
1	Bacterial Infection	Vomiting, diarrhea, aches/pains, fever, sensitive skin (pins and needles feeling), crying, headache, hard time sleeping, and I felt like I was going out of my mind!	I will never ever take this again. Called doctor at start of symptoms and they told me to keep taking it and call back in two days if I still had problems. Those two days were probably the sickest I have ever been. I wish I would of stop taking them before. Called doctor two days later and they said to stop taking and they would prescribe something else. Horrible!	F	27	7 days		1/26/2007
5	C Diff infection	Thankfully, did not experience any side effects (surprisingly as I am sensitive to EVERYTHING)	Be sure to take this with a probiotic to prevent yeast infection as its potency and effects are strong. I was in the ER for a C diff infection. Flagyl came to the rescue and all signs of C Dif were gone 12 hours after I had taken it, of course one must still continue full course of the antibiotic.	F	26	7 days		3/1/2008
1	Entamoeba Histilytica	Night Sweats, Bad Dreams, Anxiety, Extreme depression, Insomnia, Confusion, Stomach and Abdominal Pains, Nausea, and developed Diahrea.	For the first 5 days on this medication, I had no side effects what so ever. I felt as good as new on day 2. I am taking 3x500mg for a total of 1500mg daily. On day 6, I started getting alot of anxiety. Day 7 was a terrible day. Every side effect possible started. I am a complete mess on this medication. Thank god I have Lorazapam or else I'd be out of my mind.	M	26	9 days		3/25/2009
1	Crohn's Disease	Bad taste in mouth, persistent fatigue, nausea, depression, loss of appetite, weight loss	Ask your doctor if there are other drugs that would be effective at clearing up an infection without the awful side effects caused by Flagyl	M	26	3 weeks		5/31/2007
5	baterial vaginosis	dark urine and brownish discharge, sleepy alot, but that might just be from lack of sleep.	besides the brownish urine and discharge, I had no other side effects. it cleared up the infection quick.	F	25	7 days		12/11/2008
4	BV	weakness, a slight metal taste in the mouth. didn't notice these symptoms until the sixth day, then i realized that i was strangely more tired and just felt funny overall every time i took it, so i looked it up. yup it must be a normal side effect!	it did the job within 3 days of the 7 day long treatment, so i'm super happy! the only draw back to the med is that you can't take it and nurse, which i was at the time i went to the doctor. so i had to wait about 2 months to take it so i could slowly ween my two yr old. she wasn't very happy!	F	25	7 days		12/7/2009
3	BV	Metallic taste in mouth, stomach upset	took 7 days of 1000mg of Flagyl, Symptoms subsided as my body adjusted to the medication. Taking it with food and chewing gum to rid the metallic taste help me. It got rid of the BV. I would take it again if needed	F	25	7 days		11/7/2006
3	BV	Metallic taste, upset stomach, severe depression, and EXTREME tiredness. I am writing this from my desk so I don't fall asleep but it is impossible to concentrate on work! This is day four but I did not notice any side effects until yesterday. I am not typically prone to side effects from drugs... I have an acute case of BV and I am beginning to wonder which is worse! (see the depression coming through??)	If your MD prescribes this to you, see if you can get an alternative!	F	25	7 days 500 2X D		6/22/2010
3	BV/Yeast Infection	No energy,dizziness,breast tenderness,no appetite,dry itchy skin,itchy dry eyes,tingling in feet,hands,and arms, nasty taste! nothing taste right, developing what appears to be thrush,tongue is white and irritated, what else?!?! joint pain, hot and cold, anxiety, sensitive to sun, bad mood swings, blurry vision...I could go on and on. I'm also on diflucan as well so I don't know if they react together to make even more side effects?	I don't like this drug at all and I am honestly wondering if it is even helping! I feel like my body is attacking itself!	F	25	7 days 500mg 2X D		7/15/2010
1	BV	Dizziness, headache, fatigue, nausea, feeling lethargic, joint pain	I am so happy I found this website because I thought I was going crazy. I have never felt so horrible from taking a medication. Dizziness, headache, fatigue, nausea, feeling lethargic. Also, as a personal warning, do not take any pain killers while taking this drug. I did and it made me feel absolutely awful. It is my last day and I can not wait for this to clear out of my system. I feel like I have been in a moody haze for the past week.	F	25	7 days 2X D		6/24/2010
1	Bacterial Vaginosis	Depression, Hives, Shortness of Breath, Dizziness, Fatigue	Too many negative side effects	F	25	7 days		12/27/2006
5	BV	Lots of side effects. I feel sick to my stomach a few hours after taking them, I have a metalic taste in my mouth when I first wake up, rapid heartrate, dizzyness, headaches & loose stool (with frequent bathroom trips) are also some of the effects. Lastly, the frothy white discharge that comes with BV, turned into a thicker dark brown discharge towards the end of treatment, and I also got some spotting.	I'm so glad I read the comments on this website! I thought I was going to have a heartattack a few times before reading that that others have had rapid heart rates with this drug. It's good to know I'm not the only one, and its the drug, not my heart, thats the problem. But cleared up my infection!	F	24	7 days		10/19/2005
3	dental absess	Nausea, headaches, dark urine, metallic taste, drowsiness, anxiety, periodic depression	Despite the horrible side effects this med eliminated my infection. Be aware of the side effects so that you don't think you're going crazy or have food poisoning.	F	24	7 days		1/2/2010
5	Bacterial Vaginosis	Terrible metallic taste in my mouth and very bad headaches first two days.	Cured the infection	F	23	7 days		11/12/2006
4	bacterial vaginosis	-the HORRIBLE bitter, 'metalic' taste. [I noticed if I took a mouthful of a flavored drink (soda/coffee/juice) then immediately swallowed the pill and followed up with a couple of sips that I avoided the taste all toghether) -slight nausea -on day 6 I started cramping (I was due for my menstrual to start) and a few hours later was shocked to find brown pasty discharge... [which scared me until I found this site and saw that other ppl experienced the same symptoms] -darker urine for a day [reddish/brownish] -slight joint pains	overall the symptoms were mild [except the scary discharge] and if you are serious about ridding yourself of infection then it is a great option.	F	23	7 days		5/24/2007
4	Bacterial Vaginosis	Nausea, Anxiety and brown discharge...The brown discharge scared me until I saw on here that I am not the only one who has it. And the pills are just horrible to take		F	23	7 days		10/14/2009
3	bv	depression irritability DEPRESSION dizziness		F	23	7 days		7/25/2009
3	Vaginal Bacteria	I had an upset stomach for the first 4 or 5 days. I had slight bleeding in my urine. Towards the end of the meds I had a horrible taste in my mouth!	Antibotics like this one can alter the effectiveness of birth control!	F	23	7 days		2/5/2009
2	Diverticulitis	hot flashes, fatigue, nausea, trouble sleeping for more than an hour at a time	I was perscribed 500mg of flagyl 3x/day in addition to 500mg of cipro 2x/day...since i started i have been sicker than i can remember. I hope to God this is working to heal the infection because i do not think i can go through this again anytime soon. I am up seven to eight times per night with hot flashes or nausea, even while awake the dry heaving and fatigue keeps me in a state of dizziness, i feel like an alzheimers patient with my forgetfulness and can not wait until this is over, only two days left!	F	23	7 days		12/10/2007
4	Bacterial Vaginosis	Stomache pain when I woke up, and minor chest pains. Thank God for this medicine. It's a little rough taking it, but it is surely showing a difference and I'm on my second day!The first night of taking the pill I felt a little loopy! Fell asleep really fast..	It does it's job, no questions asked!!	F	22	2 days		12/9/2009

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Average rating for drug: 2.8. This page is printer-friendly; use landscape print with background color turned on.

Key to ratings: 5-Very Satisfied: this medicine cured me or helped me a great deal. 4-Satisfied: this medicine helped. 3-Somewhat Satisfied: this medicine helped somewhat. 2-Not Satisfied: this medicine did not work to my satisfaction. 1-Dissatisfied: I would not recommend taking this medicine.

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