Who are Prothiazin's main competitors?

No direct comparators detected in our index.

How often does this brief refresh?

Every 30 minutes from primary sources (FDA, EMA, MHRA, PMDA, ClinicalTrials.gov, USPTO). Subscribe to the RSS feed below for push alerts.

How do I get this as a recurring report?

Subscribe to /feed/ci/isopromethazine.xml in any RSS reader (Feedly, Inoreader, NewsBlur). Every regulatory action, trial readout, or patent event lands in your feed automatically.

Last reviewed 2026-06-10 · How we verify

Prothiazin — Competitive Intelligence Brief

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Prothiazin (isopromethazine) competitive landscape: 0 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: isopromethazine. Area: Other.

unknown isopromethazine Other Live · refreshed every 30 min

Target snapshot

Prothiazin (isopromethazine). Isopromethazine works by blocking histamine receptors in the brain, which helps to reduce symptoms of nausea, vomiting, and dizziness.

Comparator set

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

Drug	Generic	Sponsor	Phase	Class	Target	Approval / PDUFA
Prothiazin TARGET	isopromethazine		unknown	isopromethazine

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 (isopromethazine class)

· 1 drug in this class

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Cite this brief

Drug Landscape (2026). Prothiazin — Competitive Intelligence Brief. https://druglandscape.com/ci/isopromethazine. Accessed 2026-06-10.

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing