Drug Ratings for METRONIDAZOLE

Average Rating: 2.5 (1413 Ratings)

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    Charts & graphs: Reviews Summary for METRONIDAZOLE  | Top 10 Adverse Effects (reported to FDA)

RATING  REASONSIDE EFFECTS FOR METRONIDAZOLECOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
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 1  Post HALO procedure Anxiety, depression, stomach pains, racing thoughts, insomnia, shortness of breath, general weakness, fuzzy tongue, unpleasant taste in mouth. I was in good health prior to my procedure and was prescribed this medication to prevent infection.On my first two nights post procedure I was unable to sleep. My thoughts were racing and I seemed to have an irrational fear of falling asleep and would jerk awake if I began to drift off. I felt as though I was going mad. This may have been heightened by the after effects of a general anaesthetic. However, since then I have had extreme waves of depression and tearfulness for no apparent reason and at times have felt suicidal. I have had bouts of anxiety and depression in the past caused by work related stress and this feels like when my symptoms were at their absolute worst. I am extremely slight weighing 87 lbs and am 5' 1/2". I am taking this medication 3 times a day and wonder if any consideration is given to the size of the patient when prescribing the dose.Today is my last day and my goal is just to reach the end of this medication. F 49 5 days
400mg x 3
11/25/2014
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 1  bacterial infection Monday evening, after first half of pill, was dizzy, lightheaded, and much more anxious than usual. tuesday, dizzy, nauseated, fatigued, extremely panicked, & kept having to "shake off" feeling of blacking out. I discontinued medicine. same on wednesday/thursday. Thursday night, two separate episodes where left side of face & head alternated between cold/ hot sensations, tingled like something with an electric charge, & went numb completely. left eye lost all visual acuity. very confused, lethargic, dizzy, and unable to talk barely more than a whisper. severe panic, an almost hysteria, along with very threatening feeling that I was going to die. couldnt drive myself to hospital, & had terrible night. Friday morning, went to ER. treated as possible stroke. told there was no blockages in brain that they could see. After being discharged, rest of friday was spent with still severe panic, dizziness, black out feelings, numbness, tingling After finding many negative case studies, this review site, and other sites, with horror stories about this particular medicine, it is toxic and should not be allowed to be prescribed to dogs, let along humans. It was one of the top five terrible things that ever happened to me. I didnt think I was going to survive. And it was given for not a very serious reason. F 37 2 days
500 MG 2X D
11/25/2014
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 1  Gum infection After 3 tabs, Uncontrollable freezing shakes,loss of appetite,nausea,vomiting,diarrhea,flushing,joint pain,urine became reddish-brown,extreme dryness of mouth,skin rash from top to toe,could not get out of bed for 24+ hrs, abnormal blood pathology,liver,kidney dbl levels, CRP 111 rather than 2.5! Dr said I should have been in ICU. This should be off the international market. Should be stopped immediately.because I was so ill I missed a flight to Nz. Cost money in doc visits, blood tests and ongoing health concerns. Who regulates these medicines? F 62 2 days
200
11/25/2014

 4  trich Sore throat raging yeast infection back pain pain in hips and knees fatigue thrush soft discolored stools F 21 1 days
11/22/2014

 1  BV Suicidal thoughts, depression, lack of sex drive, headaches, anxiety, irritability. Prescribed one week dose, taken twice day. First dose was followed by headaches. Abdominal cramps. Thought I was premenstrual but no sign of blood. 3 days in started becoming extremely emotional. Crying for hours each night the rest of the week. Extremely anxious and irritable. After 6th day started having suicidal thoughts. Had no idea what was going on, felt like I was losing my mind. Pms? But no period. Seasonal depression? But never experienced something like. Finally realized the only thing I had changed in my lifestyle was taking these antibiotics, looked up side effects, and ended up on this website. Thank god I did because any more amount of time without knowing what was going on, I might have shot myself. This medication is extremely dangerous. Why the f*** wasn't I told about these symptoms? F 22 7 days
11/22/2014

 1  Bv Extreme irritability, moments of depression, upset stomach, very low energy, itching, sneezing, bloating I've never been sensitive to medications of any type but I've felt horrible on this antibiotic. So irritable and low in energy could hardly get through my normal workouts. stomach was always hurting. Felt nauseous, couldn't help burping a lot. Usually a self motivated happy person but felt depressed here and there. Ahhh hate this and not even half way there. F 24 7 days
500 mg
11/21/2014

 1  Dental Abscess After 24 hours of taking this medication I felt like my head was in another place. Like it didn't belong to me. I could be talking and couldn't get the words out correctly. Shocking headache. Constant nausea. Had to force food down myself to take the tablets. I've never in my life felt so Ill from an antibiotic. Took the tablets for 3 days and returned to dentist who said stop. I won't be taking these again in a hurry. Pure evil ! F 42 5 days
400 x 3
11/20/2014
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 1  dental infection Severe depression, suicidal thoughts. Shortness of breath, facial muscle tension, constipation It cleared up the original infection but made me feel awful for the 5 days I took it M 47 5 days
11/19/2014
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 3  Mouth bacteria infection 200mg Dizziness very bad , spaced out and as I already suffer with mental problems it enhanced it I was so anxious and shaky! Atleast 4 to 5 panic attacks a day, broken sleep then waking up early , headache nausea , shaky hands pins and needles confusion very spaced out feeling horrible side effects! Had no choice but to take it in suspension form will take better care of my teeth in future!! I hope I never have it to take it again family were completely unsupportive said it's just an antibiotic! Got words wrong and had weird dreams too , hopefully it's cleared my infection after what I put up with it or I'm gonna be really annoyed! F 22 6 days
5ml 3X
11/13/2014

 5  BV Other than a bad taste in my mouth, and a little sleeplessness, I haven't had any problems while taking this. Even the sleeplessness isn't really an issue because I don't wake up feeling tired. I don't have any nausea, vomiting or diarrhea. F 45 7 days
500 MG 2xD
11/12/2014

 1  bv Hearing things blurred vision extreme heat all over heat in head pins needels everywhere ringing ear headaches vomiting diarrea mental issues twitching muscle pain dizziness flushing I had 2 seven day courses and a single 2 gm dose in 2 weeks i thought i was dying never in my life have i been so ill spent most of six wks in bed this was 20 mths ago and i am still getting lots of symptoms i have had such depression ive had councilling these tabs have destroyed nearly 2 yrs of my life the affects of these have had a devastating affect on my health i dont understand why im still getting these prob docs just say they are very nasty but offer no tests to see what damage they have had on my health so i keep on suffering at all costs pls dont take the tabs ask for alternative they should not be given to anyone should be withdrawn avoid them pls F 52 1 days
2gm
11/8/2014
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 1  suspected p.i.d. Nausea loose stools extreme agitation panick attacks balance problems grinding teeth breathlessness depression lost weight headache sinus problems hot sweats I don't think this drug should be given to patients with a history of anxiety or depression as it increases these problems immensely 36 3 weeks
400mg
11/6/2014
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 1  BV I feel like im going crazy. Spaced out. Confused. Sick. Feel like im spinning when i close my eyes. Muscles twiching. Stomach hurts. I called the pharmisits thinking they would tell me to stop and to my surprise said this is normal???? I HAVE 3 DAYS LEFT OF THIS MADDNESS. i cant take this!! F 25 4 days
500
11/4/2014

 3  Chronic Lyme Disease I take this drug every weekend to combat Lyme (I take other antibiotics during the week days). On the weekends when I take this I am left feeling spaced out, extremely tired, don't want to leave my bed, feel as if I could sleep all day long. Also, the taste is horrible and is tough to swallow without gagging. I swallow pills all the time without issues. This pill always gives me an issue due to the size and taste. I can't wait until i finish this medication. F 24 6 months
200 mg 2X D
11/2/2014

 3  Tooth abcess Spaced out feeling, tired, no energy, inner lip and throat ulcers F 70 7 days
400 3X D
11/1/2014

 1  Vaginal bacteria I took this drug before bed and could not sleep because of the itchiness and when I would get up to walk to the bathroom I felt unbalanced. I would not recommend this drug to anyone. Unless you want to lose weight because you are not hungry at all and basically overall feeling of crap! F 24 7 days
10/27/2014

 3  dental infection Constant headache. Aching muscles and joints. Stiff neck. Bloated stomach. Back pain. Tummy pain. Extreme tiredness. Inability to focus on anything mentally. Eyesight blurry. Shivers then sweats. Itchy skin. This was the second antibiotic I was prescribed, after Amoxycilin failed to heal the infection after a tooth extraction. I was in such pain from the infection that I was happy to try anything. However, have had an awful 5 days, not leaving the house or having the energy to do ANYTHING. Took my last dose yesterday and am still waiting to lose the multitude of side effects. I think my infection may have gone now, but still have a tingling in gum. Have had 4 days off work so far - NEVER taking these again. F 49 5 days
200mg 3X D
10/16/2014

 3  suspected intestine infection Fine up until day 5 had diarrhea all day very tender tummy, headaches, loss of appetite,generallying feeling low I will carry on with these as they side effects are bareable F 23 7 days
400 mg
10/13/2014

 3  BV Drowsiness/fatigue, nausea, speech patterns changed (stuttering and saying things incorrectly, gross taste in mouth F 22 7 days
250 MG 3X D
10/10/2014

 1  bacteria vaginosis This medicine is not good it has me thinking crazy side effect are crazy don't take it F 34 7 days
200 MG
10/10/2014

 2  BV Second day came down with a cold which I thought was unrelated. However third day I experienced loss of feeling in arms/legs, headache, backache, fever ish, fatigue and feeling down/anxious. This lasted until day 5. Day 5 I began drinking more water and eating more, along with taking an actimel alongside the antibiotics which eased the symptoms. Only 1 more day to go, cannot wait to finish and get back to my normal self! F 24 7 days
400 2X D
9/27/2014

 5  trichomoniasis I had a panic attack immediately after taking my single 2,000 mg dose but I am prone to hypochondria induced panic attacks. After reading this site and seeing few rare serious side effects I calmed down. A little tired, little dizzy, but overall no side effects. F 27 1 days
2 g
9/26/2014

 2  h pylori Spaced out , vomiting , feeling more unwell than I did before starting meds , feel like complete s@# , loss of bearings , dopey , tearful , shakes , low mood , anxiety n I'm onlyon day 3 of 7 F 29 3 days
400mg
9/17/2014
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 2  infection after tooth extraction I ache all over my legs are sore as if I have temperature, headaches stiff painful neck, stomach and abdominal dark brown urine, feel sleepy, irritable F 46 2 days
400mg 3 x
9/17/2014
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 2  BV bloating, depression to the point of just wanting to be alone, tiredness, increased appetite, and anxiety. F 25 4 days
500
9/16/2014

 1  Precautionary afterbirth remains Very sore throat, confusion , tension in head, extreme fatigue. My 2 weeks old baby is struggling with tummy pain and very loose stool as I'm breastfeeding F 30 3 days
400mg
9/14/2014

 1  Tooth ache Hot cold shivers bad headache back ache kidney ache neck pain no energy no sleep feeling really not well Be careful with these M 63 2 days
2X D
9/12/2014

 1  Womb infection Headache Dizziness Disorientated Nausea Weakness in legs and arms Joint pain and pain in shoulder Unsteadiness Lethargic and fatigued F 40 6 days
400mg
9/3/2014
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 1  Infected wisdom tooth Just felt worse and worse and had to stop taking on 4/7th day. Heavy eyes, fatigue, depression, nausea , diarrhoea, tingly fingers, severe neck pain, pain in legs, lack of sex drive, dizziness and weird dreams when asleep but coinciding with insomnia. All that for one tooth with slight pain but nothing unbearable like the tablets. #madness #no joke #bad #rather be ill F 31 4 days
9/3/2014

 3  tooth infection dizzyness sorethroat F 4 days
300
8/29/2014

 1  Suspected Bacterial vaginosis Whilst taking tablets I had bad nausea. Towards the end of the course I had severe diarrhoea for 3 days. After the course finished I had a numb leg for 1 day which then turned into severe joint pain in 1 leg and very sore shin on the other leg the next day. I could barely walk. Bending my knees or independently lifting the leg to walk was impossible. I will never, ever take this drug again, Shocking side effects and it didn't even fully clear up the infection. F 47 7 days
400mg 3X D
8/29/2014
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 1  C-Diff Mettalic taste in mouth,loss of appetite, nausea,loss of concentration,mood changes and anxiety. F 26 5 days
500mg
8/28/2014
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 1  Intestinal Infection Anxiety, thrush, yeast infection, shooting pains throughout body, infection, muscle pain in chest Well I just got off this horrible f***n medicine...I would NEVER recommend this to anyone!!!!! Gave me twinges throughout my whole body, felt like I was dying. Could not read any longer than a paragraph without feeling dizzy and sick, because my vision was blurred!!! And on top of this it gave me a yeast infection and thrush!!!!!!!! Hate hate hate metronidazole. F 18 4 days
500 MG 2X D
8/27/2014

 1  Bacteria infection Nauseua on and off. Weak stomach. Increased appetite. Weird taste in mouth. Depressed. Very tired. F 18 7 days
500
8/26/2014

 3  infection and pid Dizznes neck pain waist pain F 33 2 weeks
400mg
8/25/2014

 2  BV I like to think I have an average range of sanity normally. Taking this started with wild dreams and fitful sleep. 2nd night paranoia and hallucinations that something was lyrking outside, trying to break into my house. I felt completely delusion +3 hours to +7 hours, then cooled down. Still groggy. Side effects seem to be dose dependent from reports and I want to fully treat the infection so I am going to try a smaller dose - long before bedtime. F 26 5 days
0.75% gel
8/22/2014

 2  BV Depression, irritability, extreme fatigue and increased appetite. I was first on this med 6 weeks ago and I was diagnosed with IBS the first week after finishing. My BV is back now and I'm on day 2. Immediately after taking the first dose I became emotional and fatigued. I hope this BV clears up for good this time. I never want to have to take this med ever again the side effects are extreme. F 37 7 days
500 2X D
8/1/2014
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 3   I am currently on day three and I am feeling VERY depressed but my symptoms are gone. Hm now I'm weighing in if it's worth it to continue on to be depressed. F 27 3 days
500 MG
7/29/2014
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 1  BV Severe headache that seemed to change location constantly, Neck and back pain, brain fog, dizziness, fatigue, and anxiety I made it through 4 days of this medication before I realized it was the culprit behind my increasingly bothersome symptoms. It started as what felt like a sinus headache for a couple of nights and then quickly turned into constant headaches and confusion. I could barely stay awake and felt like I was in a constant fog. I can't imagine why more people are not warned of these side effects. Like others, I was only told about the alcohol interaction. I am stopping this medication immediately and will NEVER take it again. Hopefully my head will feel normal again soon. F 31 7 days
500 MG 2X D
7/28/2014

 1  anerobic intestinal infection Depression, anxiety, severe dizziness and inbalance, insominia, loss of appetite, irritability, blurred vision. Was prescribed the drug for anerobic infection after major abdominal surgery. Abdomen was reopened and infection found. Samples were taken and grown in the lab. Flagyl was prescribed orally, 250 mgs. four times a day for 17 days, as well as doxycycline. Never experienced side effects like this from any other drug. Depression, anxiety, irritability, insomnia, extreme dizziness and imbalance, blurry vision, slurred speech. Have been off it for four weeks now and still experiencing some side effects. Get very nervous and anxious from time to time. Dizziness is gone and appetite seems to be coming back. Still not sleeping well. Vision not 100% yet. Tried two sips of wine and got sick to my stomach, dizzy and felt like I was going to pass out. Feel itchy and get prickly feeling in my arms, legs and back. My infection did clear up. My biggest nightmare is ever taking this drug again!! F 73 17 days
250 MG 4X D
7/28/2014

 3  bacterial infection Extreme fatigue, upset stomach, awful nightmares F 44 7 days
500mg
7/25/2014

 3  Infected tooth socket Dull headache, lack of concentration (lost keys, $200 spent on locksmith), confusion, grogginess, weak limbs, tiredness & lethargy, loss of appetite, mild depression, irritability, dark orange urine, M 47 5 days
200
7/5/2014
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 1  Diverticulitis (infection in colon) Extremely BAD BAD experience! I have been taking this 3x per day concurrently with Cipro 2x per day. After 3 days I became sleep around the clock, to the point where I felt like I was going to pass out. I have been off balance as well. As of day 5 this drug has been affecting my mental state. It has caused very high anxiety, feeling shaky inside, a bit like losing my mind. Really scary. I have 2 Metro tablets left to take today and 1 Cipro left. I wish I didn't have to take them, but doctor said I have to complete all the pills to ensure the infection won't return. I saw doctor yesterday and told him all this. He took it very lightly, saying yes, Metro (not Cipro) can cause drowsiness. That's all he said, like no big deal. Yet going through this is hell. As other have said in these posts, the RX did seem to get rid of the infection. But what a huge price to pay for that! I've never had this reaction to an antibiotic before. While it fixes one problem, it causes several others--li ...One pharmacist said the drug may make one a bit drowsy. The other said the drug would NOT do these things and I must have some other problem! Comments anyone? M 60 6 days
500 mg 3X D
6/25/2014
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 2  BV I got prescribed with this antibiotic for BV and it's been hell ever since I have started taking it. I was on it for 4 days but stopped because I started getting a rash. Around day 2 of being off of it. I started getting an odorless brown discharge. And my stomach has been really upset. And I am still getting the pins and needles feeling. I do not recommend this pill to anyone. It has made me feel awful. And I have never felt so worried for my health. Although it has cleared up my problem, The side effects are horrible. This medication is scary. F 23 4 days
500 MG
6/18/2014
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 2  BV I'm currently on Day 4 and I have been experiencing extreme fatigue. Very lightheaded!!! My BV is clearing up but not all the way cleared. I am on the pill, and it has an awful taste. I dread taking the pill. I would not recommend this medication. Also it helps if you take the medication with juice rather than water. It helps eliminate the bad taste F 20 7 days
2xD
6/15/2014

 5  Trich std Had the one dose today at the hospital strongly ask for gravol before you take the 8 pills. I have major anxiety issue and I did it after reading all the scary reviews. One IV, 8 pills and 2 shots and a adivan ..I am alive .. don't be scared get the one dose its so much easier.. side effects I got was yucky metal taste in my mouth and a few cramps.. F 45 1 days
2000g
6/14/2014
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 5  bv Sickly feeling, really bloated, wind, stomach upset, fatigue. F 28 7 days
3x 400mg
6/9/2014

 1  For amoeba After a few hours of taking the first dose - I started to get pins and needles in my hands - that progressed to same symptoms in arms and legs. I could only sleep a few hours and then would wake up with shooting pains up and down my arms and legs, some numbness and sharp pains in other parts of the body. Very scary - ended up in hospital, and then having to fly to another city to have a series of test. I only took two doses and then stopped. 10 days later still not feeling right although symptoms have subsided a little. Scariest medication I have ever taken - and that was from only two doses!! F 40 1 days
250 3X D
5/23/2014

 1  Gum infection Severe night sweats, depression, cried for no reason, awful taste in my mouth all the time, swollen tongue, tired, dizzy, no interest in anything. Infection does look like it's going down however! M 27 7 days
400 3X D
4/25/2014

 3  Gum Infection I feel awful, My head is hurting a constant pain, I have had terrible earache and on the first day of taking it Iv been bleeding black stuff my stomach feels horrendous like its full of air and all rearranging inside, Tired all the time, Bad mood swings and very dizzy and lightheaded. however it does wat it says and its taken the swelling down F 21 5 days
200mg 3X D
4/24/2014

 2  gum infection Made me feel depressed and tired M 48 5 days
4/20/2014

 1  BV I was puking, felt out of it. I missed a day so I doubled up on the medication not knowing that wasn't good. I was home for a week puking and went to emergency room. I couldn't keep anything down. That was in the year of 2012 and I have had stomach and intestine problems ever since. I have a strict diet now and have been diagnosed with GERD. I can't eat acidic or fatty foods. Don't take it. F 14 days
2X D
4/12/2014
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 1  bacterial infection while pregnant I felt extremely dizzy and my whole body felt weak. I stopped taking it after two days and was told to continue and on the fifth day I had to leave work because I couldn't stand. Woke up feeling like my head was spinning and I just had an overall feeling in my body that was off. Never again!! F 21 5 days
500mg
4/11/2014
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 3  Post abortion infection Nausea, dizziness/vertigo, feeling off balanced when walked, body weakness, insomnia, weird dreams, upset stomach, nasty taste in mouth. Horrible medicine would never take it again F 22 7 days
500 mg
4/8/2014
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 1  Tooth and gum infection I felt lethargic and depressed metal taste in my mouth and became very clumsy. Extraordinarily the metronidazole has not even kicked in after 3/4 days so I decided there is no point to continue them . They are not doing their job and making me feel sick. I also have incorporated with those symptoms flu like symptoms . I am also lactose intolerant. F 36 5 days
400mg
4/5/2014

 1  dental abscess I was taking these along with 2x500mg amoxicillin for an abscess, stopped taking like after the fourth day due to very severe anxienty and panic. my heart rate is constantly pounding, in my mind it feels like I am not here. kinda like watching my life through a glass window, I feel like I am going crazy, I can't focus on anything all I can hear is thoughts in my head, if I'm talking to people I can't engage in conversation, its really scary. wouldn't usually post on here but I wouldn't wish this on my worst enemy. I stopped taking Saturday its Wednesday now and I still feel like this, aswell as no appetite, fever, nausea, and stomach pains/butterflies but I'm not even bothered about them its my mind that I'm bothered about. went to doctors yesterday they prescribed me with chlorphenamine doesn't really seem to be helping but then again its only been a day. really don't know how to handle this anymore. M 17 7 days
2x400mg
4/2/2014

 3  BV Stomach cramps, extreme fatigue, drowsy, dizzy, backache, chest discomfort, headaches, dry mouth, loss of appetite. I would definitely ask my provider for an alternate antibiotic in the future. F 38 7 days
500 mg
3/31/2014

 1  Gum Abscess Dark brown urine, spaced out feeling, dizzy, palpitations, I feel wiped out, no energy. This drug is the devil. I was given 7 day course but I've stopped after 4 days I feel so weird. I'm going back to dentist for an alternative. I will never take these again. I also think dentist should make people aware of the side effects ( they only mentioned the alcohol one to me) F 54 7 days
400mg 3X D
3/31/2014

 2  Mouth infection I had taken it before and experienced extreme nausea and feelings of being overwhelmed, but had a severe swelling this time and both dentists I saw insisted I take it as it is effective in clearing infection quickly. I am on my last dose and this past week has been so AWFUL!!! Almost unbearable!!! I have had extreme brain fog and depression and felt like the week was a horrible blur. I have had a racing heartbeat, feeling waves of hot and cold at night, unable to sleep, then when I did manage to fall asleep well after midnight I had vivid disturbing nightmares and woke at 4am. I have felt totally depressed and out of it throughout the course and felt as if I was having a mental breakdown. I lost the ability to feel any joy and excitement. I also had severe anxiety and began to experience panic attacks and shortness of breath. This was especially bad before bed but one panic attack was on the train journey to work for no reason. The mildest side effects were the pins and needles, the fatigue, the diarrhoea, the change in taste, and that my stomach had a burning feeling every time I took it. I dreaded taking it and do NOT recommend it, especially to people with existing or past mental issues as it could be very dangerous. F 23 5 days
400mg x3
3/30/2014

 1  Dental Abcess Extremely tired, depressed, tearful, irritable. Some sort of brain fog meaning making mistakes easily. I seem to be upsetting other people too. I'm really not all there. This stuff makes you feel beside yourself. I'm not sure I'll be able to complete the course, I'd rather the abcess came back and have a tooth out than put up with what this is doing to my mind. Horrible medicine. . M 44 5 days
400 3X D
3/30/2014
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