Although we cannot provide access to all of our drug databases, the following online resources provide free access to drug databases that are generally reliable and authoritative.
Disclaimer: Some free resources are supported by companies who are marketing their products. Most make it clear that the medical content is independently generated and that sponsored content is clearly identified; however, users need to vet those resources for potential bias. It is good practice to consult more than one resource.
Drug Resources by Question / Info Need
RxList (search for drug and then click on Side Effects & Drug Interactions at left)
Alternative Medicine and Dietary Supplements
Dietary Supplements Label Database
Herbs at a Glance
Sloan-Kettering - About Herbs, Botanicals & Other Products
Pill Identification - WebMD
Medscape Drug Reference
Drugs and Lactation Database
Off Label Use
Medscape Drug Reference (noted under dosing & uses)
Poisoning and Toxicology
Pregnancy and Lactation
Hazardous Substance Databank