The effects of illegal drugs are unpredictable. If mixed with alcohol the risks of harm are increased, which could result in anything from nausea to heart failure.
Alcohol with heroin is one of the most dangerous combinations. Downers like heroin slow down your heart rate and breathing, combined with alcohol this doubles these effects putting you at risk of overdosing.
Alcohol and cocaine together increase the risk of heart attacks and fits and even sudden death. The two drugs mixed produce a highly toxic substance in your liver called cocaethylene.
In 2011-12, 13,299 children and young people under the age of 18 in England accessed specialist services for problems with alcohol
Legal highs are far from harmless and can have similar risks to drugs like cocaine, ecstasy and speed. Risks include reduced inhibitions, drowsines, paranoid states, coma, seizures, and death.