Cocaine in any form may lead to death through disruption of the brain's control of heart and respiration. These include amphetamines and methamphetamines. Users may perspire, experience headache, blurred vision, dizziness, sleeplessness, and anxiety. Extremely high doses can cause physical collapse, very high fever, stroke, or heart failure. Depressants Included are barbituates, methaqualone, and tranquilizers.
Effects can cause slurred speech, staggering gait, and altered perception.
Very large doses can cause respiratory depression, coma, and death. The combination of depressants and alcohol can be devastating. Babies born to mothers who abuse depressants during pregnancy may be physically dependent on the drugs. Hallucinogens Effects of hallucinogens vary depending upon the type of drug. Chronic users may experience mood disorders, paranoia, violent behavior, hallucinations, panic, confusion, loss of control, and death.