185 side-by-side comparisons of prescription medicines — what each one is, how it works, how it is taken, who makes it, when it was approved and whether it is in shortage. Grouped by drug class, plus the cross-class comparisons people ask about most.
Comparisons between drugs that work in different ways — usually the more interesting question, and the one people actually ask.
Comparisons combine editorial class summaries with live label, mechanism, route, manufacturer, approval and shortage data from the U.S. FDA via the openFDA API. For general information only — not medical advice, and not a recommendation of one drug over another. Two drugs in the same class are not automatically interchangeable. Related: Drug Directory · Drug Shortages Tracker · FDA Approvals