11. Tendon Ruptures Are a Drug Side Effect, Too
Tore a tendon? You wouldn't think that taking a common medication used to treat urinary tract infections could cause you to rupture your Achilles tendon, but that is the warning that the U.S. Food and Drug Administration (FDA) has issued for the class of antibiotics called fluoroquinolones. According to the FDA, pain, swelling, and tears of tendons in the heel, shoulder, and hand are more likely when taking these drugs. Common medications in this class include the antibiotics Cipro (ciprofloxacin) and Levaquin (levofloxacin).