How many drugs treat Acute intermittent porphyria?

Drug Landscape tracks 2 marketed treatments for Acute intermittent porphyria (deduplicated by molecule). 0 Phase 3 candidates and 0 Phase 2 candidates are in the pipeline.

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Last reviewed 2026-06-10 · How we verify

Acute intermittent porphyria — Treatment Landscape & Competitive Intelligence

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

Acute intermittent porphyria (disease) competitive landscape: 2 marketed treatments tracked, 0 Phase 3 candidates, 0 Phase 2 candidates. Recent regulatory actions and upcoming PDUFA dates across the entire treatment set.

2 marketed 0 Phase 3 0 Phase 2 Live · 30-min refresh

Marketed treatment landscape

Approved drugs treating Acute intermittent porphyria, deduplicated by molecule. See the full disease page for line-of-therapy detail.

Drug	Generic	Sponsor	Class	Target	Line of therapy	First approval
Thorazine	chlorpromazine	Generic (originally Rhône-Poulenc/Sanofi)	Typical antipsychotic (first-generation, phenothiazine)	Aldehyde oxidase, Sphingomyelin phosphodiesterase, 5-hydroxytryptamine receptor 1E		1954-03-26
Panhematin	Panhematin	Rush University Medical Center

Phase 3 pipeline

No Phase 3 pipeline candidates tracked.

Phase 2 pipeline

No Phase 2 pipeline candidates tracked.

Recent regulatory actions (last 90 days)

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

Upcoming PDUFA dates (next 180 days)

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

Sponsor landscape

· 1 drug in Acute intermittent porphyria
Generic (originally Rhône-Poulenc/Sanofi) · 1 drug in Acute intermittent porphyria
Rush University Medical Center · 1 drug in Acute intermittent porphyria

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Every new regulatory action, PDUFA date, or trial completion in Acute intermittent porphyria:

Cite this brief

Drug Landscape (2026). Acute intermittent porphyria — Treatment Landscape & Competitive Intelligence Brief. https://druglandscape.com/ci/disease/acute-intermittent-porphyria. Accessed 2026-06-10.

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