What's it for? Stifling the effects of the Class A drug

Drug firm Celtic Pharma is currently trialling a gak vaccine to help you quit and avoid the drug's downsides such as anxiety, depression and cardiovascular, respiratory, neurological and gastrological problems.

The vaccine, TA-CD, is administered via an injection and prevents cravings by reducing the high that is usually experienced by coke fiends.

When's it expected by? 2012