Research among college youth indicates that hashish use tends to result in more deviant and delinquent behavior, aggression, and greater rebelliousness.
PCP users may experience may experience behavioral disturbances and acts of self-injury including suicide, and attacks on others or destruction of property.
While Valium overdose is not common when being used as prescribed, it can most certainly happen in cases of misuse and addiction.
Women who are pregnant are urged to never use LSD or any other type of drug.