Marcus is suffering from a serious painkiller addiction. His family has convinced him that he needs help, and he has agreed to enter a treatment facility to "get clean." The first thing that will be essential to Marcus's recovery is for him to undergo , which refers to systematic and medically supervised withdrawal from a drug.

Detoxification

Explanation:

In this scenario, the process that is being mentioned is known as Detoxification. This is the physiological or medicinal removal of toxic substances from a living organism, including the human body, which in a living being is done naturally by the liver. When an individual (like Marcus) is addicted to a certain drug and wants to get clean, they first need to clean out their system of any trace of the drug. This can be a painful process since the body begins to need and depend on the drug.

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