(Article) Thyroid Drugs and Antibiotics: A Warning

by Holtorf Medical Group

If you are hypothyroid and taking a prescription thyroid hormone replacement drug like levothyroxine (i.e., Synthroid, Levoxyl, Tirosint) and you are prescribed an antibiotic, you will want to make sure that you know about how thyroid drugs and antibiotics can interact, affecting the absorption of your thyroid medication.

A study from the journal Thyroid found that the antibiotic ciprofloxacin – known more commonly by brand names Cipro, Proquin, Ciproxin, Ciprobay, Cirpoxine, and Ciflox — significantly decreased the absorption of the thyroid medication. [Keep in mind that some experts feel that the warning about ciprofloxacin applies also to similar quinolone antibiotics such as levofloxacin (Levaquin), lomefloxacin (Maxaquin), monifloxacin (Avelox), norfloxacin (Norox-In), and ofloxacin (Floxin).]… READ MORE