Always talk to your doctor or pharmacist for specific medication questions.  For general questions about drugs, the NIH’s National Library of Medicine’s website, MedlinePlus (www.medlineplus.gov [1]), offers information about side effects, dosage, special precautions, and more, about hundreds of prescription and over-the-counter drugs and supplements. You will also find useful information at the U.S. Food and Drug Administration (FDA) website at www.fda.gov [2].