Medications used for erectile dysfunction (ED) are highly effective, yet “drug interactions” can sometimes trigger unexpected side effects or serious health risks. In particular, combining ED medications with drugs for angina or high blood pressure may cause excessive drops in blood pressure. To ensure safe usage, it is essential to inform your doctor accurately about your current prescriptions and to understand the risks of drug interactions. This article provides a professional explanation of the characteristics of different ED drugs, medications that must be avoided in...