From Steve Hawkins
Your interview with legal high developer Dr Z (9 August, p 26) came two days after a colleague, who is a hospital consultant in acute medicine, told me that mephedrone – developed by Dr Z – is occupying more and more of their resources.
Dr Z says that he always tests a drug on himself, but I’m not sure this would constitute a proper measure of the number needed to harm – an indicator widely used in drug development to show how many people need to be exposed to a risk factor before someone is harmed.
It’s a shame that someone who clearly has talent as a developer of drugs doesn’t apply it in some other way.
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Truro, Cornwall, UK
