caffeine

Written by Austin Ulrich, PharmD, BCACP | Reviewed by Patricia Weiser, PharmD Updated on August 22, 2025 GoodRx Health Caffeine, one of the ingredients in coffee, can interact with several medications. Caffeine may worsen the health condition you’re treating. This includes anxiety, high blood pressure, and diabetes. Combining caffeine with stimulants, Sudafed (pseudoephedrine), or theophylline (Theo-24) can make you […]