Singulair

Singulair

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Questions & Answers

Side Effects & Adverse Reactions

There is currently no warning information available for this product. We apologize for any inconvenience.

Legal Issues

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FDA Safety Alerts

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Manufacturer Warnings

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.

Uses

SINGULAIR is indicated for the prophylaxis and chronic treatment of asthma in adults and pediatric patients 12 months of age and older.

SINGULAIR is indicated for prevention of exercise-induced bronchoconstriction in patients 15 years of age and older.

SINGULAIR is indicated for the relief of symptoms of allergic rhinitis (seasonal allergic rhinitis in adults and pediatric patients 2 years of age and older, and perennial allergic rhinitis in adults and pediatric patients 6 months of age and older).

History

There is currently no drug history available for this drug.

Other Information

Montelukast sodium, the active ingredient in SINGULAIR1, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT1 receptor.

Montelukast sodium is described chemically as [R -(E )]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid, monosodium salt.

The empirical formula is C35H35ClNNaO3S, and its molecular weight is 608.18. The structural formula is:

The empirical formula is C35H35ClNNaO3S, and its molecular weight is 608.18

Montelukast sodium is a hygroscopic, optically active, white to off-white powder. Montelukast sodium is freely soluble in ethanol, methanol, and water and practically insoluble in acetonitrile.

Each 10-mg film-coated SINGULAIR tablet contains 10.4 mg montelukast sodium, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, hydroxypropyl cellulose, and magnesium stearate. The film coating consists of: hydroxypropyl methylcellulose, hydroxypropyl cellulose, titanium dioxide, red ferric oxide, yellow ferric oxide, and carnauba wax.

Each 4-mg and 5-mg chewable SINGULAIR tablet contains 4.2 and 5.2 mg montelukast sodium, respectively, which are equivalent to 4 and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: mannitol, microcrystalline cellulose, hydroxypropyl cellulose, red ferric oxide, croscarmellose sodium, cherry flavor, aspartame, and magnesium stearate.

Each packet of SINGULAIR 4-mg oral granules contains 4.2 mg montelukast sodium, which is equivalent to 4 mg of montelukast. The oral granule formulation contains the following inactive ingredients: mannitol, hydroxypropyl cellulose, and magnesium stearate.

1

Registered trademark of MERCK & CO., Inc.

COPYRIGHT © 1998-2007 MERCK & CO., Inc.

All rights reserved

Singulair Manufacturers


  • A-s Medication Solutions Llc
    Singulair (Montelukast Sodium) Tablet, Chewable Singulair (Montelukast Sodium) Tablet, Film Coated [A-s Medication Solutions Llc]
  • Dispensing Solutions Inc.
    Singulair (Montelukast Sodium) Tablet, Chewable Singulair (Montelukast Sodium) Tablet, Film Coated [Dispensing Solutions Inc.]
  • Rebel Distributors Corp
    Singulair (Montelukast Sodium) Tablet, Chewable Singulair (Montelukast Sodium) Tablet, Film Coated [Rebel Distributors Corp]
  • Pd-rx Pharmaceuticals, Inc.
    Singulair (Montelukast Sodium) Tablet, Film Coated [Pd-rx Pharmaceuticals, Inc.]
  • Physicians Total Care, Inc.
    Singulair (Montelukast Sodium) Tablet, Chewable Singulair (Montelukast Sodium) Tablet, Film Coated [Physicians Total Care, Inc.]
  • Pd-rx Pharmaceuticals, Inc.
    Singulair (Montelukast Sodium) Tablet, Chewable [Pd-rx Pharmaceuticals, Inc.]
  • Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc
    Singulair (Montelukast Sodium) Tablet, Chewable Singulair (Montelukast Sodium) Tablet, Film Coated [Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc]
  • Cardinal Health
    Singulair (Montelukast Sodium) Tablet, Chewable Singulair (Montelukast Sodium) Tablet, Film Coated [Cardinal Health]
  • Bryant Ranch Prepack
    Singulair (Montelukast Sodium) Tablet, Film Coated [Bryant Ranch Prepack]
  • Bryant Ranch Prepack
    Singulair (Montelukast Sodium) Tablet, Chewable [Bryant Ranch Prepack]
  • Bryant Ranch Prepack
    Singulair (Montelukast Sodium) Tablet, Chewable [Bryant Ranch Prepack]
  • Remedyrepack Inc.
    Singulair (Montelukast Sodium) Granule [Remedyrepack Inc. ]
  • Remedyrepack Inc.
    Singulair (Montelukast Sodium) Granule [Remedyrepack Inc. ]
  • Remedyrepack Inc.
    Singulair (Montelukast Sodium) Tablet, Film Coated [Remedyrepack Inc. ]
  • Merck Sharp & Dohme Corp.
    Singulair (Montelukast Sodium) Granule Singulair (Montelukast Sodium) Tablet, Chewable Singulair (Montelukast Sodium) Tablet, Film Coated [Merck Sharp & Dohme Corp.]

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