Friday, July 10, 2026

Drug profile · INN

hydroxyzine hydrochloride

hydroxyzine hydrochloride (HYDROXYZINE HYDROCHLORIDE) is a histamine h1 receptor antagonist. Associated with Regeneron Ireland Designated Activity Company (DAC). Route of administration: injection. Current US regulatory status: approved.

FDA: approved
US status approved
Patents linked 0
Pipeline programs 2
News articles 0
Drug details — hydroxyzine hydrochloride
US status
approved
Class
Route
INJECTION
Patents
0
Programs
2
Data quality
0.89

Quick answer

hydroxyzine hydrochloride (HYDROXYZINE HYDROCHLORIDE) is a histamine h1 receptor antagonist. Associated with Regeneron Ireland Designated Activity Company (DAC). Route of administration: injection. Current US regulatory status: approved.

Key facts

INN hydroxyzine hydrochloride
Brand HYDROXYZINE HYDROCHLORIDE
Mechanism Histamine H1 receptor antagonist
Target Histamine H1 receptor
Route INJECTION
Formulation INJECTABLE

Mechanism of action

Histamine H1 receptor antagonist

Primary target: Histamine H1 receptor

Approval history

Authority Status Date
FDA approved

Pipeline programs

  1. mRNA 3210-P101 Phase 2 · SOM Biotech · Participants with Phenylketonuria
  2. mRNA-3745-P102 Phase 2 · SOM Biotech · Glycogen storage disease type 1a (GSD1a)

Related & competitor drugs

  1. azelastine hydrochloride Histamine H1 receptor antagonist
  2. brompheniramine maleate Histamine H1 receptor antagonist
  3. carbinoxamine maleate Histamine H1 receptor antagonist
  4. cetirizine hydrochloride Histamine H1 receptor antagonist
  5. chlorpheniramine maleate Histamine H1 receptor antagonist
  6. clemastine fumarate Histamine H1 receptor antagonist

Frequently asked questions

What is hydroxyzine hydrochloride?

hydroxyzine hydrochloride (HYDROXYZINE HYDROCHLORIDE) is a histamine h1 receptor antagonist. Associated with Regeneron Ireland Designated Activity Company (DAC). Route of administration: injection. Current US regulatory status: approved.

What is the brand name for hydroxyzine hydrochloride?

HYDROXYZINE HYDROCHLORIDE is a marketed brand name for hydroxyzine hydrochloride. Check FDA Drugs@FDA for the current US label holder and prescribing information.

What is the US approval status of hydroxyzine hydrochloride?

hydroxyzine hydrochloride 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.