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Phenergan — Competitive Intelligence Brief

Phenergan (promethazine) competitive landscape: 0 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Phenothiazine antihistamine/antiemetic. Area: Neuroscience.

marketed Phenothiazine antihistamine/antiemetic Aldehyde oxidase, 5-hydroxytryptamine receptor 6, FAD-linked sulfhydryl oxidase ALR Neuroscience Small molecule Live · refreshed every 30 min

Target snapshot

Phenergan (promethazine) — Generic (originally Wyeth/Pfizer).

Comparator set

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

DrugGenericSponsorPhaseClassTargetApproval / PDUFA
Phenergan TARGET promethazine Generic (originally Wyeth/Pfizer) marketed Phenothiazine antihistamine/antiemetic Aldehyde oxidase, 5-hydroxytryptamine receptor 6, FAD-linked sulfhydryl oxidase ALR 1951-01-01

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Phenothiazine antihistamine/antiemetic class)

  1. Generic (originally Wyeth/Pfizer) · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Phenergan — Competitive Intelligence Brief. https://druglandscape.com/ci/promethazine. Accessed 2026-05-13.

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