Although currently off antibiotics for a medication holiday, I’d been taking Evista with Zithromycin and Avelox. I used to take Fosamax but because of reflux and a small hiatal hernia, I was advised not to take it. I’m also lifting 3 pound weights at home, and started going to our local gym to pull down weights, starting at 25 pounds, as well as using the treadmill. Forteo was suggested but since I’m in the Medicare donut hole, I’d have to pay $682 a month for it, hence the Evista instead. Of course, to be honest, I was hesitant about giving myself a daily injection. So far, I’ve not had any problems taking osteoporosis medication with antibiotics. Good luck!