Zithromax and Stomach Pain: What Users Say

• Sta...
• Taken for less than 1 month
• April 9, 2019

For Chlamydia Infection "The nurse gave me two Zithromax pills to take for chlamydia. An hour later, my stomach was killing me, and I had diarrhea! I can’t even finish my meals, halfway through my meals, I feel nauseous. I am also very bloated, and I get headaches, dizziness, discharge, and itchiness! Use a condom! You don’t want to go through this."

• Bre...
• March 24, 2019

For Bacterial Infection "Worst med ever... literally coming out both ends at the same time! Sitting in hot bath, only thing that helps the severe stomach pain! OMG, I prefer cramps, at least those get knocked out with pills... this medicine is awful."

• Poo...
• Taken for less than 1 month
• August 18, 2017

For Chlamydia Infection "So, I tested positive for chlamydia today. I went in for a 6-month checkup, and bam... positive. I am furious! First time ever having to deal with an STI. Anyway, I'm allergic to 'cillins', so I was prescribed two 500 mg tablets of Zithromax. Took them right at my doctor's around 3:30. My stomach started churning around 6:30, no nausea or vomiting. Come 8 pm, it was like a waterfall out my poop hole. Only one bout so far, but I'm sure there will be more. Had some slight stomach pain, but nothing unbearable. Waiting to find out how my partner's feeling, lol!!!"

• sca...
• June 27, 2009

For Tonsillitis/Pharyngitis "I was prescribed a 5-day Z-Pak to treat a streptococcal pharyngitis infection. After the second day, the medication reduced the swelling and throat pain, but began to cause stomach cramping and pain. By the end of the third day, the stomach pain was severe, and the doctor recommended discontinuing use. This is the only antibiotic I have used that has caused an allergic reaction."

• Lee...
• Taken for less than 1 month
• October 8, 2015

For Chlamydia Infection "I'm 17 and live in Australia. At first, I thought I just had a UTI, but boy, was I wrong. A urine test tested positive for chlamydia. Telling my boyfriend was the worst of it, and now he thinks I cheated on him... (and I didn't and never would). But I've only been sexually active with 3 other guys, and I've ALWAYS used protection with them. The reason my current boyfriend and I didn't use protection was that we didn't have any (dumb, I know). But now I'm suffering so much pain in my stomach, and I can hardly move. I'm terrified to tell my mom about it! God, this better work."

• Anonymous
• November 17, 2010

For Upper Respiratory Tract Infection "Terrible diarrhea. Very bad stomach pains."

• Sid...
• March 17, 2017

For Chlamydia Infection "About 2 hours after taking four 250 mg tablets, I'm experiencing awful diarrhea, stomach pain, headache, jitteriness, and drowsiness. I ate before and after taking this medicine."

• Dor...
• April 29, 2016

For Bronchitis "A lot of trouble with stomach issues; diarrhea, stomach pains, and major stomach discomfort!"

• Dan...
• December 6, 2021

For Upper Respiratory Tract Infection "Couldn't take Zithromax, it caused very bad stomach pain. Might be a very good drug, but it just wasn't for me."