Overview
11 DESCRIPTION LASTACAFT® (alcaftadine ophthalmic solution) is an H1 receptor antagonist, in a sterile ophthalmic solution for topical ophthalmic use. Alcaftadine is a white to yellow powder with an empirical formula of C 19 H 21 N 3 O and a molecular weight of 307.39. Contains: Active: alcaftadine 0.25% (2.5 mg/mL) Inactives: benzalkonium chloride 0.
Mechanism of Action
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Alcaftadine is an H 1 histamine receptor antagonist and inhibitor of the release of histamine from mast cells. Decreased chemotaxis and inhibition of eosinophil activation has also been demonstrated. 12.3 Pharmacokinetics Absorption Following bilateral topical ocular administration of alcaftadine ophthalmic solution, 0.25%, the mean plasma C max of alcaftadine was approximately 60 pg/mL and the median T max occurred at 15 minutes. Plasma concentrations of alcaftadine were below the lower limit of quantification (10 pg/mL) by 3 hours after dosing. The mean C max of the active carboxylic acid metabolite was approximately 3 ng/mL and occurred at 1 hour after dosing.
Indications
- 1 INDICATIONS AND USAGE LASTACAFT ® is an H 1 histamine receptor antagonist indicated for the prevention of itching associated with allergic conjunctivitis. LASTACAFT ® is an H 1 histamine receptor antagonist indicated for the prevention of itching associated with allergic conjunctivitis. ( 1 )
Common Doses
- Refer to label
Dosage
2 DOSAGE AND ADMINISTRATION Instill one drop in each eye once daily. If more than 1 topical ophthalmic medicinal product is being used, each one should be administered at least 5 minutes apart. Instill one drop in each eye once daily. ( 2 )
Contraindications
- 4 CONTRAINDICATIONS LASTACAFT ® is contraindicated in patients with hypersensitivity to any component in the product. Hypersensitivity ( 4 )
Side Effects
- 6 ADVERSE REACTIONS The most common ocular adverse reactions, occurring in less than 4% of eyes treated with LASTACAFT ® , were eye irritation, burning and/or stinging on instillation, eye redness, and eye pruritus. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Allergan at 1-800-678-1605 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may...
Interactions
- No major interactions listed on the FDA label. Always consult a healthcare professional.