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Olopatadine

PATANOL

Pronunciation: oe-loe-pa-TA-deen

Olopatadine ballicule: receptor binding, kinetics and half-life diagram
Mechanism of action: Olopatadine ballicule
Olopatadine PATADAY mascot mnemonic cartoon
Visual mnemonic: Olopatadine mascot
“Hollow Pat-a-day”

What it isTopical H1 antagonist with mast-cell stabilization; allergic conjunctivitis and rhinitis.

Why this oneAvailability as both eye drops and nasal spray distinguishes it from most dual-action topical antihistamines.

What limits itLocal irritation and bitter taste intranasally are the main drawbacks; systemic effects are minimal.

Olopatadine molecular structure (skeletal formula)
Molecular structure: Olopatadine

FDA-approved for

FDA label

FDA dosingPopulationStartTargetMax
Ocular itch due to allergic conjunctivitis (OTC)Adults & children ≥2 yr1 drop in affected eye(s) QD1 drop QD1 drop per eye per day

Renal Undefined

Hepatic Undefined

Instructions

Available strengths

Pregnancy Undefined

Lactation Undefined

Cost

Olopatadine (PATANOL)
Strength#/mogeneric $/unitCostPlus
0.1 %dropsper unitnot offered
0.2 %dropsper unitnot offered
0.7 %dropsper unitnot offered
NADAC is a voluntary CMS survey of what retail community pharmacies pay for the drugs they stock. Olopatadine is dispensed outside retail pharmacies, so it rarely appears on surveyed invoices.

Generic entry2014

NO BOXED WARNINGS

Principal riskLocal irritation; bitter taste intranasally

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 categoryC

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

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