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User Reviews for Clarithromycin

Also known as: Biaxin XL

Clarithromycin has an average rating of 5.4 out of 10 from a total of 754 ratings on Drugs.com. 36% of reviewers reported a positive effect, while 35% reported a negative effect.

Condition Avg. Rating Reviews Compare
Sinusitis  
5.4
181 reviews 248 medications
Bronchitis  
5.2
132 reviews 288 medications
Helicobacter Pylori Infection  
5.5
88 reviews 62 medications
Upper Respiratory Tract Infection  
5.2
65 reviews 120 medications
Strep Throat  
5.1
59 reviews 30 medications
Pneumonia  
7.2
53 reviews 188 medications
Skin or Soft Tissue Infection  
4.2
48 reviews 162 medications
Tonsillitis/Pharyngitis  
5.5
43 reviews 82 medications
Otitis Media  
5.5
39 reviews 137 medications
Dental Abscess  
5.2
13 reviews 35 medications
Skin and Structure Infection  
3.9
13 reviews 76 medications
Pharyngitis  
9.2
5 reviews 47 medications
Mycoplasma Pneumonia  
7.0
5 reviews 37 medications
Pertussis  
5.5
4 reviews 21 medications
Bacterial Endocarditis Prevention  
4.0
2 reviews 56 medications
Pertussis Prophylaxis  
5.0
1 reviews 15 medications
Mycobacterium avium-intracellulare, Treatment  
1.0
1 reviews 13 medications
Legionella Pneumonia  
1.0
1 reviews 26 medications
Follicular Lymphoma  Off-label
5.0
1 reviews 14 medications
Summary of Clarithromycin reviews 5.4 754 reviews

Reviews may be edited to correct grammar/spelling, or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published.

Reviews for Clarithromycin

Derp · Taken for less than 1 month February 8, 2020

For Helicobacter Pylori Infection: “I’m on day 14/14 of this clarithromycin medication for Pylori. The first few days were good. My only complaint was that the pill was bitter. I used a trick to make sure the drug didn’t touch my tongue: fill mouth with a bit of water, set the pill in your water filled mouth, swallow immediately. Even with this, I noticed the bitter taste in my throat after a few days, but it was better. Week 2 I wasn't feeling as good. I had shortness of breath, racing heart, belching, dizziness, brain fog, nausea in the morning, trouble sleeping, muscle pain in my chest and back, & felt weak. I checked in with my doctor & everything was in working order. It was just the meds My advice: DON'T take on an empty stomach. I tried once and threw it up. Float the pill in your mouth & swallow. Stay off google. Talk to your doctor if you’re worried about your symptoms. Anxiety only makes things worse. Take it easy. Your health is important so get the rest you need. Happy healing everyone You’ve got this!”

7 / 10
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Relieved · Taken for less than 1 month October 2, 2020

For Helicobacter Pylori Infection: “I'm on day 7 of my treatment plan which consists of: 1-omeprazole, 1-clarithromycin, and 2-amoxicllin 2x/day, and bismuth sulf 4x/day. I deal with anxiety terribly and was fearful of this treatment plan after dealing with 4 months of a diagnosis with symptoms of GERD. A sense of relief came when I had to be tested and found that h pylori was causing all of this. Don't get me wrong, I hate that it has come to this but I'm relieved that it is something that can be treated without having to undergo long term treatment as I would have with GERD. I weighed my options and decided to overcome anxiety and take the meds to get rid of this thing. I have experienced the metallic taste, loss of sleep, back pains, dark stools, and brain fog. Push through!!! You can do this!!! The thing I've learned is to make sure that you have a well-balanced meal when taking your meds to avoid feeling jittery; eat small meals more times within the day; stay away from foods that will cause acid reflux; and drink lots of water.”

8 / 10
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Shuckers March 29, 2017

For Bronchitis: “You people are obviously not sick enough to be grateful you have a medicine that works. It's not even close to that bad. Take it with food. And you won't even have side effects. Take pain meds. And brush your teeth. This Medicine is the best and does what it needs to do. Stop complaining it could be worse you could die.”

10 / 10
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Anonymous · Taken for less than 1 month January 24, 2021

For Helicobacter Pylori Infection: “Taking this medicine was the worst experience ever, however, I completed my 2 weeks to rid my infection. Now I’m at day 15 since I took my last pill and I’m still dealing with side effects, I’m still having heart palpitations (only one episode a day), increased heart rate and 3 days ago I developed a rash on my face. I’m now able to sleep all night and I’m no longer awaken by my heart pounding out of my chest. I wish I would’ve read these reviews prior to this treatment. I have and appointment next week to find out if it worked. Good luck to all of those that are taking this drug now!”

1 / 10
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Twinkle July 22, 2019

For Sinusitis: “I am currently prescribed 500mg clarithromycin twice a day for 10 days. I had a sinus infection. I'm on day 4 and still feel a bit of sinus pressure. I cannot tell you how much this metal taste in my mouth has taken my sleep away. I am woken up by this terrible taste, never experienced anything like this. I feel I can only go max another 2 days with this as I just cannot take this taste anymore..its taken over my life”

4 / 10
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Sammy · Taken for less than 1 month January 24, 2021

For Helicobacter Pylori Infection: “I had been having a persistent heartburn and bloating for a month until my doctor suggested an endoscopy. The result came positive with h pylori. I’m currently taking clarithomycn, amoxicillin with omeprazole for a 10 day course. The first day of taking it my chest pain reduced down but was having panic attacks every now and then. Now on my 3rd day and I’m feeling weak, experiencing shortness of breath and a metallic taste in my mouth. The heartburn and abdominal pain is gone but now just feeling super weak. Can’t wait to finish this medication and be smiling again, stay strong loves we can get out of this.”

7 / 10
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Fi · Taken for less than 1 month July 7, 2021

For Helicobacter Pylori Infection: “I feel so much better having read the posts both good and bad. I had a nasty bout of campylobacter and when the stool sample was analysed up popped h pylori. So 500g clarthyromicin 2 a day, along with 500 of amoxicillin, and 20mg of omezrapole. Within hours of the first tablet I started to feel off. My heart was bouncy all over the place it seems to settle during the day - when I busy so I’m distracted unless it goes completely Tom and Jerry, but night is awful I can’t sleep for all the skipped beats anxiety obviously making the whole thing worse fear of death and a bitter grapefruit taste again worse at night. I’m on a 7 day course and have 5 doses left. And I cannot wait until it’s finished. I’m terrified but thank goodness I’m not alone and that has calmed me more than I can express. Good luck guys it’s just a moment in time, stay strong and dig in xxx PS I’ve given an average rating as I don’t know if I’m cured but I’ve found this deeply horrid”

8 / 10
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Frequently asked questions

Joe Smithy · Taken for less than 1 month May 5, 2017

For Bronchitis: “I have just finished a 7 day course of 500mg tablets, twice a day for a chest infection which two other antibiotics failed to clear. This antibiotic worked much faster than others I have tried, with symptoms improving rapidly after just one day. I had no side effects at all, not even the strange taste. My wife has also had a course of the same drug in the past, again with no side effects. Reading through these comments you would think that practically everyone has adverse side effects from this drug, but in actual fact it is a low percentage (under 10% according to the packet). I think more people tend to report bad side effects, than none hence the large number here. Don't be put off by this.”

10 / 10
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Mike Monroe · Taken for less than 1 month July 25, 2017

For Helicobacter Pylori Infection: “If you're reading this post then odds are you been scouring the internet freaking out and learning about h plyori....and coming across so many negative reviews about the medication. Look guys, you've got a bad infection that basically has 2 layer of protection. You have to attach this bad bug hard and heavy to bust through and kill it. I'm on day 7! And yes the first day I was scared because of the new feelings in my body....weakness, somewhat bad taste in mouth, a little brain fog...but it is NOT THAT BAD! By day 3 I felt like I'm cured! After the first day it gets easier and easier, just take with food and when the side effects show up be calm and cool and relax, if you just relax it's simple. ”

9 / 10
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jwade133 · Taken for less than 1 month June 21, 2021

For Helicobacter Pylori Infection: “I am on day 12 of antibiotics for H Pylori , I had a lot of anxiety about taking so many antibiotics, I take 4 Amoxicillin & 2 clarithromycin daily , plus omeprazole twice a day , I thankfully have not had any terrible side effects, only the bad taste in my mouth. I have taken 2 probiotic gummies with each dose plus drank an Activia yogurt with each one . And I’ve drank some kombucha, but not every day . I think replacing some good gut health has helped . I’ve read that blackberries & green tea are good for H pylori also , I tried to educate myself through Google”

6 / 10
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Tinyfourty · Taken for less than 1 month July 29, 2020

For Helicobacter Pylori Infection: “You're probably on this page because you're anxious and you want to find out if your side effects from clarithromycin are normal or if you'd have to face anything worse. I'm on day 8/10 of this medication day 1 through 3 was really awful like everyone else is saying here I have shivers, bad nausea, excessive salivation, diarrhea and loss of appetite. It stopped from day 4-6 and the nausea and diarrhea started again, the diarrhea is so bad that it hurts when I pass stool now and I don't have an appetite again. I guess we just have to really watch what we eat and hope this goes away soon. Take care, be strong and don't give up. We don't want to be put on a higher dose now do we? Good luck guys”

5 / 10
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Anonymous · Taken for less than 1 month November 6, 2019

For Helicobacter Pylori Infection: “Very strong medicine, before I was diagnosed from h.pylori, my symptoms are bloating, belching, acid reflux at night. I took this because of slight h.pylori with slight erosion on my stomach found while having an endoscopy. 500mg Clarithromycin(Klaz) Tablet, 500mg Amoxicillin(Himox) Capsule and 20mg Omeprazole(Omepron) Capsule. Taken before meal, 1-0-1 Omeprazole, 2-0-2 Clarith. and 1-0-1 Amox. for 14days, from 1st day 1st dose, effects not that much just metallic taste, stomach Cramps feeling slightly bloated when I took it from that night metallic taste turns to bitter. Second day of medication, got anxiety on early morning, bitter taste, still Bloated and Belching, 3rd day, stomach keeps growling, bitter taste and developed Insomnia and minor brain fog, still Bloated. I'm on my 4th day now, insomnia is hitting hard, bitter taste, slight bloated and keeps belching, all I can say is every day you will experience different symptoms, will update soon about my condition.”

8 / 10
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Talc · Taken for less than 1 month April 8, 2021

For Helicobacter Pylori Infection: “I was diagnosed with Pylori through a stool test and put on Triple Therapy, I tried this for 4 days, had terrible side effects, insomnia, feeling I was awful, disorientation, high anxiety and feeling terrible. I gave up then I tried again for 3 days then had the same side effects. I then tried again not wanting to give up but on the third night had horrific side effects, insomnia, frequent urination, high anxiety, pains in the stomach and rapid heart beat and thought I was going completely mad. The next day was so bad had to go to hospital ER was checked over was declared okay, but concerned that this medication therapy has done some damage to my kidneys. I guess some people are just sensitive to Triple Therapy as it's very overpowering well done anybody who gets through this treatment and are H Pylori negative.”

1 / 10
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Anonymous5 February 25, 2013

Biaxin (clarithromycin) for Sinusitis: “I have had MANY sinus infections over the years, and Biaxin is the only thing that really gets rid of them. Yes, you have a horrible (metallic) taste in your mouth, are a bit loopy, and tummy isn't the best, but those side effects are nothing compared to serious sinus pain. I'd rather be thirsty than feel like my head is in a vice all day!”

8 / 10
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Liz2222 February 12, 2017

Biaxin (clarithromycin) for Bronchitis: “I had to leave a review for this medicine because I consider it to be a wonder drug. I am prone to bronchitis and I've tried everything: amoxicillin, augmentin, ampicillin, z-pack, omnicef, etc. Biaxin is the only--and I mean ONLY--drug that will work on my bronchitis. The worst side effect for me is hunger to the point where I feel like my stomach is eating itself, but I'll gladly temporarily put up with that rather than cough myself to death! This is an amazing medication--it gets the job done when nothing else will.”

10 / 10
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yva October 5, 2014

For Sinusitis: “I too woke up in the middle of my sleep because of the bad taste in my mouth. I thought I needed to eat but whatever I eat, it doesn't go. So I googled about it and found this site. I ate a salty meal, candies, chocolate, carrot and nothing works. I've only had two tablets so far.”

8 / 10
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Flipbone · Taken for less than 1 month August 17, 2020

For Helicobacter Pylori Infection: “I'm on 1 Clar(500mg) - 2 amox(500mg)- 1 omeprazole(40mg) for 14 days and 2x per day. Before, I had stomach cramps, acid reflux, chest pains and shortness of breath for 4 mos. So, my GI doctor examined me with UB Test(urea) and it was confirmed I had H. Pylori infection. First 3 days of the treatment was horrible, having a bitter taste, bloating, belching and some slight diarrhea, tinnitus in my ears, sore throat, loss of appetite and the chest pain and shortness of breath is still there. 4th to 11th day side effects are now different as I am having nausea, headaches, bitter taste, palpitations, increased heart rate, stomach cramps, insomnia and hallucinations. Still the chest pain and shortness of breath is still there. I'm on my 12th day taking the meds and side effects are not the same as before but still some sore throat, chest pain and shortness of breath. Hopefully the infection(h.pylori) would go away worried with my kidneys. Hoping for a positive outcome with the triple therapy.”

8 / 10
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More FAQ

Hannah · Taken for less than 1 month January 13, 2021

For Sinusitis: “RUN don’t walk away from this medicine. I have a TERRIBLE metallic taste in my mouth and the AWFUL nausea that goes with it. I would honestly rather have the worst sinus infection in the world than take this medicine for another day.”

1 / 10
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FeelingRough · Taken for less than 1 month February 17, 2021

For Helicobacter Pylori Infection: “I’m 37 and recently diagnosed with H.Pylori. Prescribed treatment plan of Omeprazole, Amox and Clarith. The strange taste in my mouth is AWFUL. When I lick my lips it tastes like pennies/chemicals. Very run down and lethargic with some memory loss and foggy brain. Eyes are dry/burning and feels like an effort to get out of bed and walk to bathroom. Light headache and stiff neck. Runny nose. Lower back pain and gas with burping and hiccups. Strange craving for bananas. Bananas and foods with strong flavor help with taste and bloating. Gum and fruity hard candy helps with taste too. Bowel movements smell strong, fruity and weird in the grossest way. So tired. Need to take naps throughout day.”

9 / 10
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25skidoo August 14, 2013

Biaxin (clarithromycin) for Sinusitis: “I too have had multiple sinus infections and surgery twice. In addition I am immunosuppressed because of a medication for rheumatoid arthritis. Biaxin has always worked for me. I really have no side effects other than the metallic taste which is tolerable. I make sure I take it after food otherwise it is really hard on the stomach. I take Biaxin XL 500mg, 2 tablets once a day for 14 days.”

9 / 10
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Bexta · Taken for less than 1 month October 22, 2013

For Sinusitis: “Wrote on here yesterday. Just updating. Doc advised me to stop taking clarithromycin after I took only one 500mg last night. My experience- awful taste in mouth, vomiting, lower back pain, aching all over, severe stomach pain, couldnt sleep, dizziness, severe anxiety, dull heavy headache (similar to a hang over) and very dry mouth. All this after only ONE tablet. This medication is EVIL! Take with extreme caution people. Good luck x”

1 / 10
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Sinus sufferer · Taken for less than 1 month September 28, 2019

For Sinusitis: “Have had sinus infections for over twenty years and although two operations have helped they can still recur and are very nasty. Usually along with the sinus pain, I lose my voice with nasal drip and my breathing is affected with accompanying chest pain. Clarithromycin was recommended by my consultant years ago and although my GP was reluctant he did agree to write the prescription when needed and has continued to do so. This drug is amazing for me. Literally within a few hours I can feel the pressure lifting from my sinuses, my voice starts to return and the weight lifts from my chest and I can breath properly again. Within a few days I am back to normal. I ALWAYS take the tablet with food as per the instructions. If you don't you can get into all sorts of trouble as listed by others here. I have worried that I may become resistant to it as I probably take it twice a year but if anything it seems to be more effective for me as I get older. Not sure why.”

10 / 10
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Beah · Taken for less than 1 month February 6, 2021

For Helicobacter Pylori Infection: “I am currently dealing with gastritis and just found out I am positive for H.Pylori. I was prescribed omeprazole, two 500mg amoxicillin and 500 mg clarithromycin. My 1st dose was yesterday @ noon I got bad nausea that didn't go away even with medication, metallic taste, and severe stomach cramps that did not go away. I ended up at the E.R at 2:30 am During all this I felt racing heart, shaking and I was so anxious! NOTHING was helping! After the exhausting day of physical and emotion symptoms I couldn't sleep at all! I only slept 3.5 hours now round 2 for the medications again! I tried to just take the amoxicillin wait to see if anything then took the clarithromycin and right after that everything is coming back from the day before! I can't handle this medication. I was prescribed it for 2 weeks 2 times a day and I can't with these overpowering side effects! I was completely debilitated all day after the 1st doses! I feel so hopeless right now.”

1 / 10
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Bompster July 29, 2019

For Helicobacter Pylori Infection: “About 2 months ago I got a nasty bug so went to the doctors where I was tested for Helico pylori. Then gave me the Prevpac of 500 amox, Clarithromyxin 500 and Omeprazole twice a day. I was told to it all in one go before food. You must eat then 30-45 after for the ppi to work as it starts when your body is digesting. The first 3 days nothing I was great apart from funny taste no appetite and slight runs. The third day I didn’t eat much and by 11 in the night I had a rapid pulse rate and felt unwell. Every day different symptoms. Day 4 I had awful pain in side and tired and didn’t feel well as you will get insomnia. Today my sixth day I woke up with a headache and it’s lasted all day plus I feel dizzy and sick. Insomnia, dizzy, nausea, dysentery pain in side, rapid heart rate once, elevated pulse rate, horrid taste, sweating, memory loss some acid reflux and generally feeling ill. I can’t wait for the last day it is the only thing keeping me going as I do not want to quit.”

3 / 10
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olij · Taken for less than 1 month September 4, 2015

For Sinusitis: “I would like to know what this drug is made from. The horrible metallic taste is making me gag. I have tried everything you can think of to get rid of it. It's waking me up at night from the taste. I don't know if the H.pylori symptoms or this is worse. I have 5 days to go on this and am dreading every tablet I have to swallow. I feel it's poison.”

1 / 10
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This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge and judgement of healthcare professionals.