Flagyl and Headaches: What Users Say (Page 2)

• Rki...
• Taken for less than 1 month
• October 9, 2016

For Bacterial Infection "I was prescribed a 500 mg 3x a day dosage for 10 days. I always have issues with antibiotics, but this by far is the worst side effects I've ever had! The metallic taste, diarrhea, headaches, and overall feeling are horrible. I just completed day 5, and it was so bad that I wanted to stick my fingers down my throat and force myself to throw up! I also started to develop oral thrush! The medicine does seem to be working, but I'm not taking all 10 days. I feel like I can barely make it to 7!!"

• Ret...
• Taken for less than 1 month
• December 10, 2022

For Giardiasis "It was such a relief to get a diagnosis of giardiasis instead of something worse that I was happy to accept a 10-day treatment of 500 mg/3x day Flagyl. As a retired RN, I knew it could be bad, and it was! Dizziness, metallic taste in my mouth, stomach pain that differed from the one Giardia was giving me, headaches, nausea, sleep disruption, random itchy spots, foul-tasting heartburn - full range of side effects. HOWEVER, I am still so grateful to have something to get rid of my parasites after suffering with them for 3 months that I just dug in and took the 10-day treatment with gratitude. It's been rough, and now at the end of the treatment, I am focusing forward on healing my GI system and getting back to normal."

• Som...
• April 29, 2015

For Bacterial Infection "I can't express enough how much this pill has helped! I'm taking it for BV. My symptoms were gone by day 3. I should add that I have severe allergies to many strands of antibiotics (I'm talking epi-pen type allergies). For me to be able to take this with almost zero side effects is amazing. I had a slight headache day 2, and I sort of feel like I'm always hungry, but I would take any side effect for 7 days over the smell of BV!"

• Anonymous
• Taken for less than 1 month
• October 25, 2019

For Bacterial Infection "I was prescribed Flagyl for 7 days, 3 times a day. It is awful, this medicine has kept me with a headache, nauseated, and vomiting. Today is number 6, and I'm dreading the last day. I just want to be normal again!!"

• Boo...
• June 7, 2015

For Bacterial Infection "This medication worked wonders! I was a little skeptical about it from doing research, but with anything you Google search, if you dig around long enough, you will eventually find something scary. I have had no diarrhea while on this medication, as some of the complaints were mostly about diarrhea, nausea, headaches, and cramps. Let me tell you, drink PLENTY of water! Don't drink soda, tea, punch, etc. I mean straight-up water! I also picked up Kefir; it's a cultured low-fat milk smoothie. It will do wonders for your stomach! I also took Zantac 150 mg 30 minutes before taking the Metro pill. The only side effect I have had was a tender tongue under my chin. P.S. If your urine is dark (a common complaint by most), you need more water, people! Hope this helps you!"

• Geo...
• Taken for less than 1 month
• June 11, 2019

For Bacterial Infection "I only took it for 2.5 days. The adverse reaction was horrible: severe nausea, the worst taste in my mouth, and headache. Lasted for over 2 weeks. I ended up in the ER because of this medicine. I would never take it again."

• eri...
• April 13, 2017

For Bacterial Infection "Pathetic medicine. I was prescribed Flagyl 400 mg, 3 times a day for 3 days. After day one, I felt the side effects immediately. Tiredness, fatigue, headaches, and increased sensitivity being the major ones. The worst part is, after completing my course, I'm still feeling the side effects. Sensitivity to light has increased along with dizziness and fatigue!"

• Nan...
• Taken for less than 1 month
• April 8, 2014

For Bacterial Infection "Started this 4 days ago for an anaerobic infection in my jaw that had not responded to other medication. The first day, I developed a severe headache at bedtime, took one of the pain pills the dentist had prescribed because of my jaw/tooth abscess. Took care of it and went about my business. So far, every night I developed a headache an hour or so after taking my last dose of the day (1 500 mg tab twice a day). This is day 4. The only other side effect I've noticed is significantly darkened urine. I would have been really worried about that (as I have kidney stones) but had a routine visit with my urologist today who said it was okay and would go away."

• Anonymous
• Taken for less than 1 month
• August 30, 2019

For Bacterial Infection "This is the worst drug. There is clearly something really nasty in it. I’m a fit, healthy 37-year-old woman and took this for an ear infection, and after 2 days, I had severe headaches, all the muscles were sore, aching, very weak. It was nasty. Never again."

• MJa...
• Taken for less than 1 month
• September 27, 2018

For Bacterial Infection "On day 2 for a 7-day course, 250 mg, 2 pills every morning and night for BV. First day gave me nausea, headache, trouble looking at the light, back and chest pain, anxiety, and increased heart rate. Second day, now I have all the same side effects, but now my poop is looking weird and urine's turning brown. I get anxiety every time I need to pop a pill, I hate Flagyl!"

• Bab...
• Taken for less than 1 month
• July 22, 2018

For Bacterial Infection "I give this medicine a five because yes, it is helping with my BV being 27 pregnant, but let me tell you, I took it two days and stopped. The side effects are just horrible and excruciatingly painful to the point I almost went to the ER. I still have a small slight headache today, but it's tolerable. I don't feel as sick to my stomach today, my head thankfully isn't pounding anymore, and hopefully will stay that way. I don't care what infection I have, I will NEVER EVER take this nasty, horrible Flagyl EVER AGAIN!!!!"

• Anonymous
• July 26, 2009

For Bacterial Infection "I have been on this medicine for 3 days. I have insomnia (normally a good sleeper) and headaches since the treatment began. The infection is going away, but I don't know how much longer I can take this medicine."

• Bes...
• December 7, 2009

For Bacterial Infection "I have used this medication several times for bacterial infections. And they do a great job, but this time I am having a headache every day I've been using it and an upset stomach, but I guess it's worth it to get rid of the infection."

• Kat...
• June 28, 2016

For Intraabdominal Infection "I read all of these reviews on the side effects of this medication. They scared me so bad because I have hurt for 2 weeks, and I didn't want to add more pain on top of that. But the only side effects I have had are tiredness and a bit of a headache. Only a few days into my 2-week dose, but hoping it fixes whatever problem I have been having with my intestines! Don't be afraid to take it like I was."

• Kat...
• Taken for less than 1 month
• October 22, 2019

For Bacterial Infection "My side effects for Flagyl were nausea, diarrhea, and headache throughout the week of me taking this twice a day for bacterial vaginitis. Nasty taste in my mouth and urine smells awful. Irritation from BV has subsided but is still present. Swollen feet and hands, along with chills. Terrible feeling!"

• Ali...
• Taken for less than 1 month
• August 2, 2018

For Bacterial Infection "After having constant diarrhea for 10 days and losing 8 lbs, I was prescribed 500 mg X 3/day for 7 days. I just finished my last dose. I also took the pills with a probiotic. I did experience nausea, fatigue, loss of appetite, and a headache throughout the treatment. However, none of the side effects were extreme. I have had some normal BMs, but I still have diarrhea. I’m just curious to know if it will go away or will I have to be prescribed another dose."

• Han...
• August 7, 2017

For Bacterial Infection "Literally, I feel like this is the worst medication I've ever been on. The surgeon put me on this for an oral abscess... been dying for like 5 days and two more to go. Can't sleep, but I'm so tired. Eat, look at light, worst headache ever. Stomach hurts, but this headache makes me forget about that. All in all, I feel horrible."

• Hap...
• Taken for less than 1 month
• March 24, 2017

For Bacterial Infection "I was prescribed 500 mg for twice a day in order to get rid of my BV. I only had a small headache the first night and slight nausea, but it wasn't bad at all. The rest of the days and nights were fine. BUT, this is what I did: ate a big brunch and a big dinner, and took the pill in between eating each meal. During the middle of the day, I ate something with probiotics, like kimchi or cultured cashew cheese. At night before bed, I would have a high-quality probiotic pill with 50 billion cultures that support vaginal health. Other than that, lots of water, healthy food, and using condoms! Good luck!"

• Bei...
• September 14, 2019

For Bacterial Infection "I was prescribed Flagyl 500 mg twice a day for 10 days for BV. My only real symptom of BV was bleeding/unusual discharge between periods. I happened to start my period the day I started taking this medication, so I can’t say if it actually worked or not. I decided after day 5 to stop treatment, as a standard prescription is anywhere from 3-10 days. Side effects: no appetite. I lost some weight with this medication and had to force myself to eat something before taking it to avoid an upset stomach. Dark urine. I drink around 50 oz (almost 1.5 liters) of water a day, so this was so odd to see, but I knew it was from the meds. Dizziness, headache, and fatigue. Not consistently but randomly on different days of usage. Fatigue and dizziness on day 4. Dizziness and headache on day 5. Can’t knock it, but I can’t say yet if it actually worked or not."

• Ang...
• Taken for less than 1 month
• June 2, 2022

For Bacterial Infection "I have experience with a lot of other antibiotics, but this one has been by far the worst. The taste is so bad I threw up one of my doses, and the taste doesn’t wash away with water, it lingers. It helped with the infection, but it also wiped out all the good bacteria in my gut. This isn’t unheard of from antibiotics, so I’d supplement with probiotics as well. Food doesn’t sit in my body for longer than 10 minutes, and the lack of food is giving me bad headaches, and my body is so tired."

• amg...
• June 26, 2015

For Trichomoniasis "This medicine works, but the taste is so bad. The second day of being on it, I started throwing up. The sickness went away, but I'm still getting major headaches, and I feel exhausted. I was prescribed 30 of them for a colon infection due to not being able to go to the bathroom, which caused the infection to spread into my stomach."

• Swe...
• July 26, 2016

For Bacterial Infection "No side effects at first. On a 7-day treatment, 2 times a day. By day 5, I noticed I've had severe insomnia, an extremely dry nose, headache, a general feeling of being unwell. But the infection felt cured, so that's good. Don't swallow toothpaste like another reviewer suggested, just try to put it way back in your mouth to swallow it fastest. Take with food! It's not good for people to swallow toothpaste 2 times a day. Stomach upset on day 5 as well. More like bad indigestion and always hungry, even though I ate. But with only three pills left, I'm determined to finish treatment. If it doesn't work for you and you are trying to treat BV, even if pregnant, ask if you can try the vaginal gel if you can't take the side effects of this medication."

• Eri...
• Taken for less than 1 month
• December 7, 2016

For Bacterial Infection "I was just diagnosed with BV and am now on my 2nd day of meds. Day 1, I felt nauseous and had some headaches, but neither were unbearable. This morning, I feel almost as if I'm getting a UTI because it's a little uncomfortable to pee and I have the urge to go frequently. I'm hoping this will go away once I'm done with my dosages (2 pills/day). Pills taste a little funky, but like I said, nothing unbearable. I may try the cream next time around!"

• brt...
• Taken for less than 1 month
• November 2, 2021

For Trichomoniasis "I was so scared to take this medication due to reading the reviews. I took four 500 mg pills (2000 mg). I went and got the medication at 7:30 pm and got home around 7:45 pm. I ate pasta with a strawberry banana smoothie. I took the pills after eating at around 8 pm. I put them in the back of my throat and swallowed them with my smoothie. I did taste a little bit of the pill, but it wasn’t that bad, and it didn’t stay in my mouth long. I have a prescription already for Zofran, so I took a Zofran along with the medication (the pharmacist said it was okay). I then made myself a cup of lemon ginger tea just in case and didn’t end up drinking any of it. I waited for the side effects to hit, and nothing really happened. I had a headache that lasted for about 20 minutes and went away. I went to bed at around 10:45 pm, just because I was sleepy from a long day at work. If you don’t want to feel nauseous, I would recommend asking for Zofran to help! This experience went great!"

• Nop...
• Taken for less than 1 month
• February 7, 2022

For Bacterial Infection "I was given this medicine (500 mg Flagyl) from an urgent care doctor for bacterial vaginosis. I had thought it to be just another antibiotic and didn’t bother looking anything up about it. The first day I could taste that horrible taste and had a headache, the second day I was in my bed crying, whole body ache, headache, nausea, diarrhea, and that horrible taste, which made the nausea worse, and there’s nothing you can eat or drink that helps it. I felt worse taking Flagyl than I did with BV. I couldn’t do it anymore. After four days of laying in bed feeling like I was dying, I finally got myself up and made an appointment with my GP. He gave me the vaginal suppositories of clindamycin, which seem to be working, no side effects. I get chronic bacterial infections and have had many different types of antibiotics, but Flagyl is something else. Just say no to this one and save yourself a week of laying in bed feeling like death. You’re welcome."