Tomo 1,194 Posted August 21, 2021 I'm allowed to take pills after my recent surgery. I think I am coming down with a dreaded UTI. Has anyone had any problems taking Kelfex (Cephalexin) after a gastric bypass? Share this post Link to post Share on other sites
catwoman7 11,220 Posted August 21, 2021 most meds aren't an issue after gastric bypass. The only problematic ones I can think of are NSAID's and extended release formulas. I don't think I've ever heard of anyone who's had issues with antibiotics. 1 Tomo reacted to this Share this post Link to post Share on other sites