Montelukast

Montelukast (CAS 158966-92-8) is a leukotriene receptor antagonist active pharmaceutical ingredient used in the treatment of asthma and allergic rhinitis.

Where is Montelukast used?

• Pharmaceutical manufacturers and contract formulators: finished API for solid oral dosage development
• Prescription and OTC oral tablets and chewable formulations targeting respiratory indications
• Generic drug manufacturers: bioequivalent products following patent expiry
• Pediatric chewable tablet formats: a distinct formulation segment
• Analytical method development and pharmacokinetic research programs: key intermediate reference
• It is an active procurement target across regulated and semi-regulated markets.

Commercial specifications

• Standard grades: USP, BP, Ph. Eur.
• Documentation packages support regulatory submissions in major markets
• Bulk quantities for commercial manufacturing; smaller research-grade quantities for formulation development