The growing use of counterfeited Tramadol in Africa represents a serious health crisis but criminalising its use would lead to criminalising people in pain.
As the Colombian government announces a new wave of repression against coca-growing communities, the Bolivian case shows regulation can be viable and effective.
This documentary documents the struggle of people living with HIV in Russia, where basic harm reduction and life-saving services are virtually inexistent .
Ms Byanyima has more than 30 years of experience in the fight against the HIV epidemic in Africa and is a champion of women's rights and development in the region.