The short version
11 companies supply this market — deep enough that no single failure threatens the supply.
Market view
31 marketed package NDCs · 11 active manufacturers
Most dispensed: 25 mg · Capsule, Liquid Filled · #2 blister packs/carton / 12 capsule, liquid filled in 1 blister pack · 25 mg · Tablet, Coated · #1 bottle, plastic/carton / 100 tablet, coated in 1 bottle, plastic · 12.5 mg/5mL · Solution · #1 bottle/carton / 118 ml in 1 bottle · 25 mg · Capsule · #2 blister packs/carton / 12 capsule in 1 blister pack
11 companies supply this market — deep enough that no single failure threatens the supply.
Every detected change for diphenhydramine hydrochloride, newest first — price moves, shortages, recalls, and manufacturers entering or leaving. Detected by comparing each day’s federal data against the day before.
Other molecules FDA puts in Histamine-1 Receptor Antagonist, with whether each is in shortage right now. Same class is not the same drug — substitution is a clinical decision, and this is a supply picture, not a recommendation.
Expand a strength to see its dosage forms, then package sizes, then each manufacturer and NDC. Click an NDC for its full detail page.