• 102,000 people, 4 million minutes, 67,000 hours, 2,800 days, 400 weeks or 7.5 years worth of data-sharing. Whatever way you look at it, we have the world's most comprehensive survey of drug use.

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Safer use Limits

We created the world’s first guidelines for safer drug use. The cannabis guide is now live, find out how safe your cannabis use is and get advice on how to reduce your risk of harm.

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Latest articles

The Global Drug Survey 2014 findings

Reflections on the results of the world’s biggest ever drug survey by Dr Adam Winstock The survey The 2014 Global Drug Survey (GDS2014) conducted

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Could ‘Darknet’ Drug Markets Be a Good Thing?

Global Drug Survey has been tracking the dark net markets since 2012. Our work on the Silk Road before its closure in October 2013

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Deluded drinkers and the failure of guidelines

Behavioural economics, social norms, excessive drinking and why everyone wants to be a ‘face in the crowd’.

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