Wednesday, July 8, 2026

Drug profile · INN

hydroxychloroquine sulfate

hydroxychloroquine sulfate (HYDROXYCHLOROQUINE SULFATE) is a toll-like receptor 9 antagonist. Associated with Amneal Pharma Europe Ltd. Route of administration: oral. Current US regulatory status: approved.

FDA: approved
US status approved
Patents linked 0
Pipeline programs 7
News articles 0
Drug details — hydroxychloroquine sulfate
US status
approved
Class
Route
ORAL
Patents
0
Programs
7
Data quality
0.89

Quick answer

hydroxychloroquine sulfate (HYDROXYCHLOROQUINE SULFATE) is a toll-like receptor 9 antagonist. Associated with Amneal Pharma Europe Ltd. Route of administration: oral. Current US regulatory status: approved.

Key facts

INN hydroxychloroquine sulfate
Brand HYDROXYCHLOROQUINE SULFATE
Mechanism Toll-like receptor 9 antagonist
Target Ferriprotoporphyrin IX
Route ORAL
Formulation TABLET

Mechanism of action

Toll-like receptor 9 antagonist

Primary target: Ferriprotoporphyrin IX

Approval history

Authority Status Date
FDA approved

Pipeline programs

  1. 20-27 PaTcH Phase 2 · Ningbo Cancer Hospital · Metastatic refractory Pancreatic Cancer
  2. APHP190131 Phase 2 · PARItec · Primary Sjogren's syndrome
  3. Leflunomide CF for primary Sjögren's Syndrome Phase 2 · Disc Medicine · primary Sjögren's Syndrome
  4. Hydroxychloroquine Sulfate Approved · First People's Hospital · Primary IgA Nephropathy
  5. Hydroxychloroquine Sulfate 200 Mg Tablet Approved · First People's Hospital · Atrial Fibrillation
  6. PRIMERA001 Approved · Disc Medicine · Rheumatoid arthritis according to 2010 criteria
  7. Hydroxychloroquine Sulfate 200 MG [Plaquenil] Unknown · BRIGHT MINDS BIOSCIENCES · Coronavirus Infection

Related & competitor drugs

  1. chloroquine phosphate Ferriprotoporphyrin IX inhibitor
  2. quinine sulfate Ferriprotoporphyrin IX inhibitor
  3. amodiaquine hydrochloride Ferriprotoporphyrin IX inhibitor
  4. artemether Ferriprotoporphyrin IX inhibitor
  5. chloroquine hydrochloride Ferriprotoporphyrin IX binding agent
  6. halofantrine hydrochloride Ferriprotoporphyrin IX inhibitor

Frequently asked questions

What is hydroxychloroquine sulfate?

hydroxychloroquine sulfate (HYDROXYCHLOROQUINE SULFATE) is a toll-like receptor 9 antagonist. Associated with Amneal Pharma Europe Ltd. Route of administration: oral. Current US regulatory status: approved.

What is the brand name for hydroxychloroquine sulfate?

HYDROXYCHLOROQUINE SULFATE is a marketed brand name for hydroxychloroquine sulfate. Check FDA Drugs@FDA for the current US label holder and prescribing information.

What is the US approval status of hydroxychloroquine sulfate?

hydroxychloroquine sulfate has approved status in the United States according to our Drugs@FDA-derived records. Verify on the official FDA label before clinical or commercial decisions.