Keeping track of all of your medications, doses and schedules can be hard. Bringing your medication, supplement and vitamin bottles to your doctor’s appointment is a good way to prevent mistakes. It helps your doctor know what you’re taking, when you’re taking it, and why. A doctor can also count the pills left in your bottles to determine if you are taking your medication correctly. Bringing your medication bottles can also tell a doctor if a pharmacist gave you a cheaper “generic” drug. Usually this is not a problem, but sometimes it can have unwanted side effects.