The user risks death through vomiting while unconscious. Furthermore gases like lighter fuel and cleaning fluids can cause death through suffocation or heart failure. Uppers speed the body up. These include amphetamines, ecstasy and cocaine. These drugs can be very dangerous for people who have heart or blood pressure problems.
Downers slow the body down.
These include heroin, alcohol and solvents. These drugs can be very dangerous if mixed because the body can stop altogether. Some drug users get into serious problems and are only alive today because the people around them knew what to do in an emergency. Sadly others died because the people around them did not know what to do. Users can become tense and panicky , which usually occurs with hallucinogens, but also occurs with drugs like amphetamines and ecstasy as well as high doses of cannabis.