Keflex… Don’t Take It!


I’m Ashley, I’ve had ulcerative colitis since I was probably 10. Or at least that’s as far back as I can remember the symptoms. I’ve been diagnosed for about 5 years.

So I’ve been in remission for 2 years. Hooray I know right! Well it was all great until I got a sinus infection and my Dr. (a new Dr.) prescribed me Keflex…. whatever you do don’t take it! I took it for 3 days and it threw me out of remission. I was almost forgetting how bad having UC felt. After doing my own research on this medicine I found out that different websites say not to take it if you have stomach problems or colitis. What a great doctor!…

10 thoughts on “Keflex… Don’t Take It!”

  1. I totally can relate. An internal med doc placed me on clindamyacin and then amoxicillin I went into a flare.(I actually had yeast in my throat so needed antifungal not antibiotic!!!) I contacted my gastroenterologist who indicated that many antibiotics will cause an overgrowth of bacteria and or C-Diff in UC patients. Nothing is easy anymore having UC/we have to be the advocates for ourselves!!!! Take care.

  2. I took keflex praying i wouldnt flare.. 3 days later im havin bloody diarrea after 1 yr of remission. Ahole dr insisted i take it for sinus infection. Never again will i take antibiotics. I will die of infection first rathrr then a uc flare. Uc sucks, i got it from doxycycline 2 years ago.

  3. AGREED!!! I had to go on it twice within 2 months for a staph infection… well I flared up without thinking much about it, but both are following the same course of settling down from a flare… and to think I was getting ready for a hospital stay for IV steroids in 2 days and starting remicade if it didnt work with steroids…. thank goodness There is this sight and our ability to KNOW our bodies!

  4. My 15 year old daughter has ulcerative colitis. She was prescribed Keflex for Strep Throat. It has had a very positive impact on her. This is the 3rd time since being diagnosed and she told me that every time she’s been on anti-bio tics her symptoms go away.

    1. Have been struggling with getting my symptoms under control with mesasal and salofalk for two months, finally 3 weeks ago I went on gluten free diet and wow back to normal nearly straight away. Specialist said I probably have an allergy to gluten which was stopping the medication putting me into remission earlier. Anyway I went to Drs 2 days ago for a sinus infection and was prescribed Cephalexin – and yes I am bleeding and have bad stomach pains worse than ever.

  5. I’m on day 3 of Keflex due to infected road rash : ( and my bleeding is really bad. I have bleeding every single day for the past year but this is double, if not more, than usual. Ugh!! I googled Keflex and UC and behold my fab website popped up. Thanks to the OP and every one who comments here. Weird because when I was in the hospital once they have me some other antibiotic that made me feel great after I took it. Ill have to contact the hospital and see what that was. Take care every one

  6. I started a wicked flare 3 days ago–5 days after starting Cephalexin. I quit taking it on the second day of the flare, yet it rages on. GP prescribed it, but he knows I have UC. Now I’m stuck at home on a beautiful Sunday hoping I can make it to work tomorrow. Oh, and I still have the sinus infection!

  7. My 4 years flare went into remission after taking Cephalexin for 7 days. Cephalexin was prescribed after tooth extraction procedure.

  8. I was put on cipro for my colitis infection worked great then 2 months later it was worse than ever been doing home remedies and it has gotten better

  9. After Doxycycline caused a flare, I needed to start taking Cephalexin. After finding this site I am expecting the worst and I’m wondering if there are anyways to actually take antibiotics to treat infections without causing a flare-up? Are there any remedies to help with a flare while on antibiotics?

    Thanks in advance!

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