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Azelastine

ASTELIN

What it isIntranasal H1 antihistamine; allergic rhinitis.

Why this oneA fixed combination with fluticasone provides broader nasal relief than either component alone.

What limits itThe bitter taste is the main reason people stop. Some systemic absorption gives mild sedation.

FDA-approved for

FDA label

FDA dosingPopulationStartTargetMax
Allergic rhinitis (nasal allergy symptoms)Adults & children ≥12 y2 sprays/nostril QD, OR 1–2 sprays/nostril q12h (BID)1–2 sprays/nostril BID4 sprays/nostril per 24 h
Allergic rhinitis (nasal allergy symptoms)Children 6–11 y1 spray/nostril q12h (BID)1 spray/nostril BID2 sprays/nostril per 24 h

Renal Undefined

Hepatic Undefined

Do not exceed 4 sprays/nostril (adults & ≥12 y) or 2 sprays/nostril (6–11 y) in 24 hours

Instructions

Pregnancy Undefined

Lactation Undefined

NO BOXED WARNINGS

Principal riskBitter taste, which drives non-adherence

Cost, est. cash$5–$150/month

Generic entry2009

Classes and tags

Clinical profile

Therapeutic safety burden0 / 4
Overdose danger0 / 4
Weight-gain liability0 / 4
Sedation liability0 / 4
QT / Torsades0 / 4
Direct muscarinic antagonism0 / 4
Embryofetal risk0 / 4

Legacy pregnancy categoryUnknown / historical label unavailable

Defining liabilityLocal irritation, sensitization or administration-site injury; negligible systemic toxicity at usual use.

Mechanism of action: Azelastine ballicule

Azelastine ballicule: receptor binding, kinetics and half-life diagram

Open Azelastine in the interactive console ↗

Memory aids: mascots and interaction avatars

Azelastine ASTELIN mascot mnemonic cartoon
“A zealous teen a’ stealin”

Open Azelastine in the interactive console ↗