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Questions & Answers
Side Effects & Adverse Reactions
For topical ophthalmic use only. Not for injection or oral use.
There is currently no legal information available for this drug.
FDA Safety Alerts
There are currently no FDA safety alerts available for this drug.
There is currently no manufacturer warning information available for this drug.
FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
ALAMAST® ophthalmic solution is indicated for the prevention of itching of the eye due to allergic conjunctivitis. Symptomatic response to therapy (decreased itching) may be evident within a few days, but frequently requires longer treatment (up to four weeks).
There is currently no drug history available for this drug.
ALAMAST® (pemirolast potassium ophthalmic solution) is a sterile, aqueous ophthalmic solution with a pH of approximately 8.0 containing 0.1% of the mast cell stabilizer, pemirolast potassium, for topical administration to the eyes.
Pemirolast potassium is a slightly yellow, water-soluble powder with a molecular weight of 266.3.
The chemical structure is presented below:
9-methyl-3-(1 H-tetrazol-5-yl)-4H-pyrido[1 ,2-α] pyrimidin-4-one potassium
ACTIVE: pemirolast potassium 1 mg (0.1 %); PRESERVATIVE: lauralkonium chloride 0.005%; INACTIVES: glycerin, dibasic sodium phosphate, monobasic sodium phosphate, phosphoric acid and/or sodium hydroxide to adjust pH, and purified water. The osmolality of ALAMAST® ophthalmic solution is approximately 240 mOsmol/kg.