General Question

SunitaMishra's avatar

Does poison have an expiry date too?

Asked by SunitaMishra (15points) January 27th, 2020

All drugs have an expiry date (at least most of them), as poison is also a drug, should there be an expiry for it too?

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3 Answers

cookieman's avatar

If it does, it would be printed on the bottle/package somewhere. Look for a “Sell by…” or “Good through…” or “Expiration…” date.

Who or what are you looking to poison, by the way?

elbanditoroso's avatar

Any chemical mixture – compound or single chemical – has a definite span of time over which the chemical(s) become less potent.

The trick is knowing the rate of loss of potency (in other words, it takes 6 months for Belladonna to lose half its strength) and the normal strength of the poison. And that’s going to be different for a compounds, poisonous or not.

It’s a similar principle – although not the same – as radioactive half life.

ragingloli's avatar

Chances are, it will just be poisonous in a different way.

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