This is one more interaction worth knowing about. If taking Cipro or related antibiotics for short periods, take the thyroid dose 6 hours away from the Cipro. If taking it for more than 2 weeks, have your doctor check thyroid levels on the Cipro to be sure you are not going hypothyroid.
Cooper, John, "Ciprofloxacin interacts with thyroid replacement therapy," British Medical Journal, 2005;330:1002 (30 April), Online at http://bmj.bmjjournals.com/cgi/content/full/330/7498/1002
Jacob Teitelbaum, M.D. is one of the world's leading integrative medical authorities on fibromyalgia and chronic fatigue. He is the lead author of eight research studies on their effective treatments, and has published numerous health & wellness books, including the bestseller on fibromyalgia From Fatigued to Fantastic! and The Fatigue and Fibromyalgia Solution. Dr. Teitelbaum is one of the most frequently quoted fibromyalgia experts in the world and appears often as a guest on news and talk shows nationwide including Good Morning America, The Dr. Oz Show, Oprah & Friends, CNN, and Fox News Health.