Alamast (Pemirolast Potassium Ophthalmic Solution) Drug Information: Description, User Reviews, Drug Side Effects, Interactions

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May 26, 2012

Alamast

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Alamast User Reviews >>

Alamast

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ALAMAST®
(pemirolast potassium) Ophthalmic Solution 0.1%

DRUG DESCRIPTION

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:

ALAMAST® (pemirolast potassium) Structural Formula Illustration

C₁₀H₇KN₆O

Chemical name

9-methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-α] pyrimidin-4-one potassium

Each mL contains: 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® (pemirolast potassium ophthalmic solution) oph-thalmic solution is approximately 240 mOsmol/kg.

What are the possible side effects of pemirolast ophthalmic (Alamast)?

Serious side effects are not expected with pemirolast ophthalmic.

Commonly, some burning, irritation, itching, dry eyes, or other eye discomfort may occur.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at...

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What are the precautions when taking pemirolast potassium ophthalmic solution (Alamast)?

Before using pemirolast, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as preservatives like lauralkonium chloride), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history.

After you apply this drug, your vision may become temporarily blurred. Do not drive, use machinery, or do any activity that requires clear vision until you are sure you can perform such activities safely.

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is not known whether this drug passes...

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Last reviewed on RxList: 12/30/2008
This monograph has been modified to include the generic and brand name in many instances.