Answer
The Aurobindo Pharma - Milpharm Ltd. product, montelukast 4 mg granules in sachet, has a shelf life of 3 years.
Sources for this answer
- Montelukast 4 mg granules in sachetAurobindo Pharma - Milpharm Ltd. · emc · SmPC §6.3 Shelf life · Version 3Document updated
Sources checked