Despite its name, pink cocaine doesn’t necessarily contain any cocaine. Instead, it’s often a mixture of various other substances, including MDMA, ketamine and 2C-B. MDMA, commonly known as ecstasy, is a stimulant with psychedelic properties while ketamine is a powerful anaesthetic which has sedative and hallucinogenic effects. 2C drugs are classed as psychedelics but they can also produce stimulant effects.