Cocaine interferes with reuptake of

Cocaine has also been shown to block reuptake of dopamine and
interfere with serotonin activity.

Diazepam is the drug of first choice to control cocaine-induced seizures. When seizure control is inadequate phenobarbital may be substituted.

Low doses of Tetra-hydro-cannabinol (THC)

High doses of THC : a progression to disturbance in thought processes and time perception, impairment in short-term memory, and ataxia may be prominent.

In high dose of THC may induce feeling of

In Marijuana , Cardiovascular effects may include dose-related sinus tachycardia, and blood pressure is usually significantly affected.

Marijuana smoking may cause cancer due to its high tar content.