Pharmaceutical drugs tend to be categorised into drug lessons. A group of drugs will share an identical chemical construction, or hold the similar system of motion, the same related mode of action or goal the identical disease or relevant ailments.[five][six] The Anatomical Therapeutic Chemical Classification Process (ATC), the most generally used drug classification system, assigns drugs a unique ATC code, which is an alphanumeric code that assigns it to particular drug classes within the ATC system.

Negative effects can occur when commencing, reducing/increasing dosages, or ending a drug or medication routine. Unwanted side effects may result in non-compliance with prescribed procedure.

The same behavioral therapies that have served deal with dependancy to 안전놀이터 heroin are utilized to take care of prescription opioid addiction.