Singulair (Montelukast) 10mg is a prescription medication manufactured by MSD, containing 28 film-coated tablets in a calendar pack format. Each tablet contains 10mg of the active ingredient Montelukast, used for treating and preventing asthma and allergy symptoms. The medication comes in film-coated tablet form, packaged in a convenient calendar pack to help track daily doses. This is a prescription-only medication produced by Merck Sharp & Dohme (MSD). The tablets contain 10mg of Montelukast as the active pharmaceutical ingredient.