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Tinidazole and Nausea: What Users Say

Brand names: Tindamax, Fasigyn

Nausea: mentioned by 25 users (23.4%)

Based on user experiences from 107 Tinidazole reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

metallic taste 35.5%
nausea 23.4%
headaches 18.7%
fatigue 8.4%
diarrhea 7.5%
bad taste 6.5%
sleepy 6.5%
tiredness 5.6%
upset stomach 4.7%
increased heart rate 3.7%

Reviews for Tinidazole

Commonly mentioned side effects
  • Mea...
  • September 6, 2016

For Bacterial Vaginosis "Been battling BV for as long as I can remember, and this is the only thing that works! Sure, you get a metallic taste in your mouth and feel a bit drained, but if that is what I have to deal with so my BV doesn't come back, then it's well worth it!"

9 / 10
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27 Report
  • JJS...
  • Taken for less than 1 month
  • May 4, 2017

For Bacterial Vaginosis "Took 4 pills a day for 2 days. I am at about 13 hours from my last pill as I write this. Maybe I was extremely lucky, but I didn't have any negative side effects. No metallic taste, no nausea, no headaches, etc. I also notice a positive difference 'down there'. I took one pill at a time - 1 with breakfast, 1 with lunch, 1 with afternoon snack, and 1 with dinner. Maybe that helps to reduce side effects rather than taking multiple at once? I drank a lot of water and did not have any alcohol since starting them."

10 / 10
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26 Report
  • Spa...
  • March 16, 2017

For Bacterial Vaginosis "It works! I took Tindamax, 2-day dosing, 4 pills on the first day, 4 pills the second day, and yes, it made me very sick. I was sleepy, fatigue, nausea, headache, it was horrible, and that metal taste is totally disgusting. It made everything taste nasty for 4 days, but the medication started working immediately, within hours after I took the first dose. My advice to you is, if you are prescribed this medication, you may want to take time off of work just so that you can deal with your symptoms."

10 / 10
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22 Report
  • BVn...
  • Taken for 1 to 6 months
  • March 2, 2015

For Bacterial Vaginosis "Tinidazole is much better than Metronidazole - it leaves no clumpy discharge like Metronidazole gel does, and if you use the pill, it only takes 2 days rather than 10 with Metronidazole. Yes, it leaves me feeling nauseous, but left with a choice between the 2, I'd choose Tinidazole every time. I actually liked the loss of appetite because I am trying to lose weight. Additionally, if you suffer from recurrent bacterial vaginitis, the birth control NuvaRing is what my GYNO is having me try. Apparently, it can get rid of bacterial vaginitis for recurrent BV sufferers. So far, so good!"

10 / 10
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27 Report
  • Moa...
  • January 12, 2021

For Trichomoniasis "I took this med as a one-time dose, 4 pills at once, and I actually had 0 side effects the whole day. I ate a big meal with it. But I woke up this morning with a horrible metallic taste in my mouth and some nausea. But I have noticed the cloudy urine and odor has subsided. This is probably the only antibiotic that didn’t give me major side effects. Don’t let the reviews scare you!"

9 / 10
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11 Report

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  • kee...
  • Taken for less than 1 month
  • November 2, 2013

For Bacterial Vaginosis "This is so far, so good. I would give this a ten, but the side effects bring it down to an 8. I started taking the two-day treatment and I still have this horrible metallic taste in my mouth. It causes me to lose my appetite because everything I eat tastes horrible. I also had a headache and nausea. I have been suffering from BV for almost a year now, and this medication has cleared it up really fast. So I have no major complaints. I will come back in a month and give an update."

8 / 10
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24 Report
  • Mis...
  • April 20, 2016

For Bacterial Vaginosis "I have had BV since my daughter was born. 8 years. Metro, both pills and gel, would not cut it. Finally, I'm on tinidazole and I feel the pain from BV going away! My stomach cramps were unbearable! The next day, I felt better! BUT I googled this 'why do I taste metal,' and I smell it too. This site popped up! So glad to hear it works! My teeth hurt too. No nausea, though... a few sharp pains. But, could be related to my hernia issues. Hope this helps! I am taking 2 pills daily for 7 days. I will report back when I go into OB for results."

9 / 10
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21 Report
  • Anonymous
  • Taken for 1 to 6 months
  • November 20, 2012

Tinidazole for Bacterial Vaginosis "My insurance covered some, but good thing Tindamax gives a discount card for prescription. I have suffered with bacterial vaginitis off and on for 4 years. Finally got a prescription for Tindamax, and it was the only thing that cleared it up for a few weeks. When my period came, the bacterial vaginitis came back! On round 2 of Tindamax now. Hopefully, it gets rid of it for good. 4 pills, 2 days. I get a really nasty metallic taste and nausea, but the few weeks I was without bacterial vaginitis, it was definitely worth it!"

7 / 10
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27 Report
  • Anonymous
  • Taken for less than 1 month
  • November 9, 2015

For Bacterial Vaginosis "Within 10 minutes of taking the pills, I could taste the metallic taste. It was not unbearable. BV was gone when I was done with the 2-day treatment. Make sure to take with a very large meal! I think this is what saved me from vomiting. I have a very sensitive stomach and only felt nauseous a couple of times, but it went away quickly. The only other side effect was that I was very fatigued."

8 / 10
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14 Report
  • 25y...
  • Taken for less than 1 month
  • April 1, 2013

Tinidazole for Trichomoniasis "I was diagnosed with trichomoniasis, and where it came from I'm unsure of. I took the 4 white pills as soon as I got them. I didn't experience any major side effects other than feeling flushed (body temperature was rising) and dehydration. I knew the increase in body temp was an indication the medication was at work. I have not yet had a follow-up with my ob-gyn, but as soon as I do (a couple of days from now), I will repost my personal results and will be able to better rate this drug. As for my partner, who also took Tindamax, he said he felt extremely itchy all over his body and very nauseous and complained of a chemical odor whenever he would urinate. He has yet to go get a follow-up with his doctor as well."

7 / 10
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15 Report
  • Anonymous
  • August 19, 2016

For Bacterial Vaginosis "I started to take this after the metrogel, and the pills weren't working for me. My doctor gave me 4 pills of the tinidazole to take twice a day. The first day was okay, but the second, I felt very fatigued and sleepy. I decided to drink coffee, and that actually made it worse (I started really getting nauseous). My symptoms cleared up the next day, that's why I think it's still better than the other meds. Also, you don't have to take it for a whole week."

7 / 10
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12 Report
  • Sad...
  • August 31, 2014

For Bacterial Vaginosis "I've been on 500 mg twice a day for two days. I'm supposed to take it for three more days. Severe side effects. I have extreme weakness, numbness in my left hand/arm, body aches, now severe pelvic pain, which I'm hoping is just a yeast infection, nausea, food tastes weird, I can only drink water with lemon because it makes the water taste metallic, severe fatigue. My doctor has been trying everything for bacterial vaginitis on and off for the past year, and especially the past six months. I know this will work (as Flagyl did in the past), I'm just hoping the side effects go away."

5 / 10
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15 Report
  • AJa...
  • March 19, 2021

For Trichomoniasis "I took tinidazole (4 pills at once = 2 g) on March 16th, 2021. I took it because I was diagnosed with Bacterial Vaginosis as well as Trichomoniasis. I also had yeast (yes, I know so much going on). I took Monistat 3 a day to clear up the yeast. I took this as soon as I got done eating, so my stomach was nice and full. I felt fine after taking this medication the first day. The next day, March 17, 2021, there were very mild symptoms. The symptoms were so mild that I still went about my day without being bothered. During that evening, I had some diarrhea and felt nauseated with very little appetite. But it wasn't to the point of overbearing... my nausea wasn't that bad, it was mild. My appetite seems to be the only thing that really did something, but I still ate. Oh, and urine was dark, and all I drink is water (but taking this med does give you dark urine). On March 18th, symptoms are nonexistent, no smell, no heavy discharge, and side effect symptoms from medication are gone."

10 / 10
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6 Report
  • Anonymous
  • July 6, 2011

Tinidazole for Bacterial Vaginosis "The nausea alone is what made me give this medication a 1. Not only are you over-the-top nauseous, but the tired feeling and nasty metallic taste are overwhelming! I will most definitely be calling my doctor tomorrow for the gel."

1 / 10
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17 Report
  • mcc...
  • April 18, 2017

For Bacterial Vaginosis "Got prescribed 2 pills daily for 5 days to treat BV that my doctor thought would not be treated by metronidazole (spelling?) or basically any vaginal creams. It's been two days now, and I'm only starting to feel better. Definitely not as bad as it was before, but also not 100% there yet. I'm surprised by the comments about metallic taste and nausea. I have a very weak stomach and take antibiotics very poorly, except this one has really been a charm. I forget that I'm even on it throughout the day. I made sure to eat big breakfasts and dinners before taking my doses. Slight headache that goes on and off throughout the day, but really nothing compared to other antibiotics and their side effects. Have yet to experience the metallic taste."

9 / 10
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7 Report
  • Ros...
  • Taken for less than 1 month
  • April 7, 2020

For Bacterial Vaginosis "I have been having bacterial vaginitis for more than 8 years. In the first year, I walked into a pharmacy, saw the drug Tinidazole, and just bought about 5 packs of 2g-4 tablets each. I took 4 tablets for 3 days without a prescription. I'm a registered nurse, and within those 3 days, I felt relieved, but because of the serious metallic taste, I reduced it to 2 tablets 2 times daily. That is how the infection resurfaced for more than 8 years. I have tried several drugs, they did not work, there was no odor, but I felt irritation sometimes. In the last seven days, I decided to risk taking it again without a prescription, I have just taken it for the 7th day, 4 tablets. I hope to take a High Vaginal Swab after this, though the side effects are terrible: metallic taste, severe headache, sometimes nausea, rapid pulse. I just hope I can complete 10 days before giving up. Lest I forget, in Nigeria, it is one of the cheapest antibiotics."

10 / 10
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6 Report
  • Pud...
  • Taken for less than 1 month
  • March 23, 2021

For Bacterial Vaginosis "I was concerned about the side effects, but I really wanted to stop the BV. I'm one of those that has battled with it for years. In about 12 hours, I could feel the difference down there. Now, the side effects: overall, not too horrible. Mild nausea. I can deal with that for another day."

10 / 10
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3 Report
  • Mem...
  • June 2, 2017

For Bacterial Vaginosis "This medicine makes me feel like garbage. I am prescribed 8 pills for 2 days. I took one last night and felt like crap for hours. Took another one this morning and was bad for the first hour, then mild. Now time to take another, and I don't want to. This is my second round, and they made me feel worse last time. By day 3, I had to quit. That would be why I'm on it again. I'm trying to do it right this time because I do not want to have to suffer through the medicine a 3rd time! Makes me feel dehydrated. Headachy, metallic taste, nauseated, rapid heartbeat, and gassy. But it does clear up infection."

2 / 10
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7 Report
  • Mar...
  • April 3, 2016

For Bacterial Vaginosis "If I could give this a negative star, I would! WORST side effects ever! So sleepy, don't want to do anything and can't keep anything down! I finished my two days of 4 pills, and on the second day, I started feeling very sick, and now it's the day after, and I can't keep anything down, extremely nauseous, thrown up 5 times! Please eat a LARGE meal before taking this!"

2 / 10
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9 Report
  • nic...
  • Taken for less than 1 month
  • January 1, 2016

Tinidazole for Giardiasis "I was (incorrectly) diagnosed with giardia and took Tindamax. I had a horrible reaction with nausea and diarrhea. This went on, and I ended up hospitalized for days. The bad taste in your mouth lasts a LONG time after you take the medication. It takes a long time to clear your system, as this is a long-acting medication. The reaction I had sounds like what is supposed to happen if you drink alcohol while taking it. I am certain I did not drink alcohol, but I got this ill anyway. The real bummer is that after I took it, I was told the lab made a mistake and I did not actually have giardia!!"

1 / 10
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4 Report
  • Fin...
  • Taken for less than 1 month
  • July 14, 2021

For Bacterial Vaginosis "I used to take 2 pills as a single dosage. It made me nauseous, and it made anything I ate or drank taste horrible. I was taking this pill for bacterial vaginitis, and 2 days later I had a yeast infection! Worse and even frightening that the mild itch I was having, accompanied with stomach ache and cramps."

2 / 10
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0 Report
  • Nik...
  • Taken for less than 1 month
  • August 4, 2018

For Bacterial Vaginosis "I'm 28 weeks pregnant, and my doctor did a Pap smear on me, saying that I had a bacterial infection, so she prescribed me tinidazole, and she told me to take 4 pills the first day and take 4 pills the next day. So I did, and I was feeling something was wrong, my baby wasn't moving that much. Then the next day, I started throwing up a lot. I was wondering how I can stop throwing up."

2 / 10
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0 Report
  • Anonymous
  • March 8, 2011

Tinidazole for Bacterial Vaginosis "I'm on the tinidazole right now. It has caused me severe nausea and severe headaches that I can't even treat with Tylenol 3. My head hurts all day."

3 / 10
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18 Report
  • Anonymous
  • April 2, 2011

Tinidazole for Bacterial Vaginosis "Experienced severe headaches, vaginal discharge, nausea, and a metallic taste. I only took it for 2 days."

4 / 10
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18 Report
  • ash...
  • June 29, 2015

For Bacterial Vaginosis "I took this medication for a parasite called Blastocystis hominis. I have a metal taste in my mouth and feel nausea and anxiety. Also, my pelvis hurts, and I feel my chest feels tight at times."

9 / 10
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8 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.