Get a GoodRx drug guide

Returns one dedicated GoodRx drug guide. side-effects: common and less common side effects with reported frequencies, serious and reported side effects, and the label source. dosage: coupon price per dosage and quantity for each dosage form, and typical dosing. interactions: interacting drugs grouped by severity (not_recommended, usually_not_recommended, increased_risk), with GoodRx slugs where linked. Includes reviewer, last-reviewed date, and related guides. Use pairs from /goodrx/drug-guides; a drug without that guide returns 404. Requests use US egress because GoodRx is US-only.