Antibiotics are valuable for fighting bacterial infections such as strep throat or a urinary tract infection – but taking them inappropriately can cause antibiotic resistance or make them...

What Are Side Effects? Side effects, also called adverse reactions, are unwanted effects related to taking a medication. They can occur with prescribed or over-the-counter medications, vitamins or...

What is Considered a Drug Interaction? A drug interaction can happen when: Two or more drugs you’re taking react with each other. A drug reacts with certain foods, drinks or supplements. When...