Ketamine has been used for decades as an anaesthetic drug, but in the past few years, more and more psychiatrists have been using it for hard-to-treat depression

Deputy Social Development Minister Hendrietta Bogopane-Zulu tells the UN that the war on drugs has failed and is suggesting other options to tackle addiction

Pharmaceutical experts differ over how to limit dependency on a common painkiller.

It began with doctors trying to help their patients but has turned into an epidemic of addiction. Ed Pilkington reports.

Prescription drug abuse is on the increase, and medical aids often fund this form of addiction. Faranaaz Parker reports.