No matter what form you choose, cocaine is an extremely dangerous substance. All forms of cocaine can produce psychological and physical dependency in a relatively short amount of time. Users of various amphetamines also may experience sweating, headaches, blurred vision, dizziness, sleeplessness, and anxiety. Long term use of high doses can cause hallucinations, delusions and paranoia. Depressants Smaller doses of depressants cause effects similar to alcohol, including calmness, relaxed muscles, slurred speech, poor physical coordination, and altered perception.
Larger doses can cause respiratory depression, coma and death.
The combination of depressants and alcohol is extremely dangerous because it multiplies the effects of both drugs. Like many other drugs, the use of depressants can become psychologically and physically addictive. Regular users also develop tolerances and require larger and larger doses. Withdrawal symptoms range from restlessness, insomnia and anxiety to convulsions and death. Hallucinogens These drugs, the most common of which are PCP and LSD, have extremely unpredictable effects on users.