Symptoms Of Drug Use

How does the drug mimic symptoms of psychiatric disorders. Consider the behavior of an individual in both intoxication and withdrawal.

when you're high ... It's like being manic .. nothing can hurt you .. when you come down or through withdrawel you're depressed, you hear voices, etc.

Of all the ways. Drugs make you crazy, Temporarely. And continue to do so.

Lots. That's why they screen drugs / alcohol. In withdrawal and intoxication of the more dramatic symptoms of mental hallucinations, delusions and delirium. Are less profound anxiety and depressive symptoms.

Mimics the top of my head:
Amphetamine and related substances: schizophrenia (particularly paranoid type) and manic episodes
episodes of cocaine and Paranoid Schizophrenia sometimes manic or mixed mood
Marijuana: syndromes often resemble chronic use amotivational to depressive
Heroin and related substances: does not really mimic psychiatric disorders during intoxication and physical symptoms are more pronounced during the withdrawal
Alcohol: Intoxication in mood disorders most, during withdrawal (depending on the severity of dependence) of mood, anxiety and psychotic symptoms.