dextromethorphan hydrobromide + diphenhydramine hydrochloride + levomenthol · Medicine question

What is the shelf life of Benylin Dry Coughs Night Syrup, and when must the bottle be discarded after first opening?

Name: What is the shelf life of Benylin Dry Coughs Night Syrup, and when must the bottle be discarded after first opening?
Published: 2026-11-08T13:44:14.401Z

iatroX medicinesPublished 8 November 2026

The answer

Answer

Benylin Dry Coughs Night Syrup has a shelf life of 3 years, and the bottle must be discarded 4 months after first opening.

Sources for this answer

Benylin Dry Coughs Night SyrupMcNeil Products Ltd · emc · SmPC §6.3 Shelf life · Version 13Document updated 11 May 2026

Sources checked 8 November 2026

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