What is Pyrilamine used for?

Pyrilamine is indicated for Allergic conjunctivitis, Allergic rhinitis, Common cold, Dermatographic urticaria, Dysmenorrhea.

Who makes Pyrilamine?

Pyrilamine is developed by Impax Labs.

What development phase is Pyrilamine in?

Pyrilamine is FDA-approved (marketed).

What is the generic name of Pyrilamine?

mepyramine is the generic (nonproprietary) name of Pyrilamine.

Last reviewed 2026-04-20 · How we verify

Pyrilamine (mepyramine)

Impax Labs · FDA-approved active Quality 27/100

At a glance

Generic name	mepyramine
Sponsor	Impax Labs
Drug class	Central Nervous System Stimulant [EPC]
Target	Histamine H1 receptor
Therapeutic area	Immunology
Phase	FDA-approved
First approval	1973

Approved indications

Allergic conjunctivitis
Allergic rhinitis
Common cold
Dermatographic urticaria
Dysmenorrhea
Influenza-like symptoms
Itching of skin
Nasal congestion
Nasal discharge
Seasonal allergic rhinitis
Sinus headache
Sneezing
Urticaria
Vasomotor rhinitis

Common side effects

No common side effects on file.

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

Source	Used for
FDA label	Mechanism, indications, dosing, boxed warnings, drug interactions
ClinicalTrials.gov	Trial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Pyrilamine CI brief — competitive landscape report
Pyrilamine updates RSS · CI watch RSS
Impax Labs portfolio CI