Pharmacology and Toxicology: For Patients and Consumers

"Learn about your prescription drugs and over-the-counter medicines. Includes side effects, dosage, special precautions, and more."
AND
"Browse dietary supplements and herbal remedies to learn about their effectiveness, usual dosage, and drug interactions."

National Institutes of Health - National Library of Medicine - MedlinePlus

"Medication Guides are paper handouts that come with many prescription medicines. The guides address issues that are specific to particular drugs and drug classes, and they contain FDA-approved information that can help patients avoid serious adverse events."

U.S. Food and Drug Administration

"A collaboration of U.S. government agencies, public health organizations and health sciences libraries"

"The Agency for Toxic Substances and Disease Registry (ATSDR), based in Atlanta, Georgia, is a federal public health agency of the U.S. Department of Health and Human Services. ATSDR serves the public by using the best science, taking responsive public health actions, and providing trusted health information to prevent harmful exposures and diseases related to toxic substances."