
05 billion, on higher sales of its top seller, Singulair for asthma and allergies, plus diabetes drugs Januvia and Janumet and HIV drug Isentress. That offset some problem areas, including a big drop in sales of Gardasil, a vaccine against a virus that causes cervical cancer and genital warts that soon will face its first US competition.

The chewable tablet form of this medication may contain phenylalanine. Talk to your doctor before using this form of montelukast if you have phenylketonuria (PKU).

If you already take this medication to prevent asthma or allergy symptoms, do not use it for exercise-induced bronchoconstriction.

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