Keflex and Upset Stomach: What Users Say
Reviews for Keflex
- Jea...
- Taken for less than 1 month
- May 28, 2019
For Bladder Infection "Took a 500 mg dose of Keflex twice a day for one week - I had a UTI. Side effects were diarrhea, headaches, felt depressed, upset stomach, and nausea. Now I’m having stomach cramping. Just hope the urinary tract infection I had is gone after taking this strong antibiotic."
- Anonymous
- July 22, 2011
For Skin or Soft Tissue Infection "Works very well for treating the cellulitis I got from an insect bite. But don't drink alcohol while you are on this medication. I had half a beer and started feeling really nauseous, had a migraine and my stomach hurt."
Frequently asked questions
- What are the best antibiotics for a tooth infection?
- What is the best antibiotic to treat strep throat?
- Is Cephalexin safe for dogs? Uses, dosage, side effects?
- Can Cephalexin treat an abscess in the mouth or gum infection?
- Ama...
- Taken for less than 1 month
- September 14, 2018
For Bladder Infection "I have constant battles with UTIs, so I’ve taken a lot of different antibiotics. Keflex is definitely a good one, but for me, I have to take 500 mg three times a day, so I get some side effects, mostly tired, stomach cramps, and dizzy. It’s not bad, though, like some of the other ones I’ve taken. Before I had repeat infections, I had the 500 mg twice a day dose and had very minor cramping from that dose. It’s my go-to when I can take it. Drink lots of water with it too, it helps flush your system faster and get rid of the infection and its side effects quicker."
- Ros...
- Taken for less than 1 month
- August 7, 2020
For Bladder Infection "I had cystitis and was put on Macrobid for 5 days, only to find out it didn’t do a thing for the infection. My Dr. gave me an injection of Rocephin in the office and suggested Keflex for 7 days, three times a day (500 mg). The Rocephin gave me a stomach ache and diarrhea, then I took Keflex, and it made me queasy the rest of the day. The second pill I was fine and have remained side effect-free since then. I finish my course tomorrow but still feel the cramping and mild pain from a UTI, so I’m not sure this antibiotic worked either. We’ll see!"
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Your review helps others make informed decisions.- Anonymous
- November 12, 2020
For Bacterial Infection "I had an infection on my nose. I was happy how Keflex cleared up, but the side effects were terrible... stomach cramps, gas. I was down for 3 days."
- Sta...
- Taken for less than 1 month
- September 24, 2021
For Skin or Soft Tissue Infection "Very bad reaction to this medication. Multiple bouts of diarrhea and stomach cramps."
Are you taking this medicine?
Your review helps others make informed decisions.More about Keflex (cephalexin)
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- During pregnancy
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- Drug class: first generation cephalosporins
- Breastfeeding
For Bladder Infection "Took a 500 mg dose of Keflex twice a day for one week - I had a UTI. Side effects were diarrhea, headaches, felt depressed, upset stomach, and nausea. Now I’m having stomach cramping. Just hope the urinary tract infection I had is gone after taking this strong antibiotic."