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!…

colitis, infection, keflex, prescribed, sinus, Ulcerative

9 Responses to Keflex… Don’t Take It!

  1. Tracey September 14, 2010 at 7:15 pm #

    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. jon April 9, 2012 at 5:24 pm #

    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. Jamie June 16, 2012 at 12:10 am #

    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. Stephanie July 26, 2013 at 4:07 am #

    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.

    • Loretta June 27, 2014 at 1:50 am #

      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. Jackie with UC
    Jp August 13, 2013 at 8:22 pm #

    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. Sara October 20, 2013 at 8:44 am #

    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. Agha March 14, 2016 at 4:22 pm #

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

  8. Edward J Walsh September 17, 2019 at 7:17 am #

    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

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