Which is the most dangerous drug in the world?

Drug discovery in the past few decades has transformed medicine and the way we think about drugs.

The development of new drugs has transformed how we treat the disease, and helped the development of cures.

As a result, the world has a much larger problem than just a single drug.

But, there are still many drugs that have never been developed.

VICE News takes a look at which drugs are most dangerous in the history of the world.