Absolutely — they do! The shelf life isn’t just a formality; over time, the medicine can lose its strength, and in some cases, change chemically.
Churna (powder) lasts around 2 years if sealed tight, but once you open it, finish it within a few months.
Herbal tablets (Vati/Gutika) usually stay good for about 3 years, while Guggulu or mineral-based tablets can go up to 5 years.
Lehyam (the jam-like prep) has a shelf life of about 3 years, and
Ghrita (medicated ghee) around 2 years thanks to its natural preservation.
Asava/Arishta (fermented syrups) can remain stable for many years — even up to a decade if stored well — but that doesn’t mean they keep getting “stronger.”
Metal-based medicines should always be taken only when prescribed and thrown away the moment they expire, as the metals can oxidise and turn harmful.
Keep medicines airtight, away from heat and light, and once you open them, aim to finish them sooner rather than later. Expiry dates exist for a reason — even in Ayurveda.
MBH/AB