I just was proscribed Ciprofloxacin for a possible UTI. The info the pharmacist gives with it says the following.

Ciprofloxacin may cause swelling or tearing of a tendon (the fiber that connects bones to muscles in the body), especially in the Achilles' tendon of the heel. This can happen during treatment or several months after you stop taking ciprofloxacin. Tendon problems may be more likely in children and older adults, or people who use steroid medicine or have had an organ transplant.

Has anyone experienced a tendon tear while taking it. Now I worry about lifting while taking it.