A drug interaction is a modification of the effect of one drug by another. This interaction can be beneficial or harmful, or has no discernible effect. Common psychotropic drug interactions include pharmacokinetic, pharmacokinetic, and pharmacodynamic interactions.

Narcotic substances, psychotropic drugs need to be differentiated 2 to be effective in treating disease and avoid danger to the patient. In any case, the patient should also use the drug prescribed by the doctor.

Marijuana is a drug extracted from the hemp plant with the scientific name Cannabis Sativa. Marijuana abuse is becoming increasingly common and alarming. Accordingly, Marijuana testing will allow the detection of marijuana in the user's urine.