Noble's Hospital has revealed it's treated people for overdosing on vitamins, iron and indigestion tablets over the past three years.
A freedom of information request asked how many people have been treated for drug abuse since 2014 - and what drugs they'd taken.
As well as heroin, cocaine and synthetic drugs, the response revealed people have also been hospitalised for prescription drugs such as penicillin.
But the number of overdoses has fallen from 186 in 2014 down to 134 last year.
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