The short version
Only one company currently supplies this market — there is no backup if it stumbles.
Market view
3 marketed package NDCs · 1 active manufacturer
Most dispensed: DIPHENHYDRAMINE HYDROCHLORIDE 25 mg · Tablet · #1000 tablets/bottle · DIPHENHYDRAMINE HYDROCHLORIDE 25 mg · Tablet · #600 tablets/bottle
Only one company currently supplies this market — there is no backup if it stumbles.
Every detected change for diphenhydramine hcl 25 mg, 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.