After taking a drug for several years, bruce decides to quit taking it. he begins to experience a variety of physical symptoms, psychological symptoms such as irritability, and a strong craving for the substance. what term is used to describe what bruce is experiencing

Bruce is experiencing abstinence syndrome from drug withdrawal.

Explanation:

This syndrome comes from abstaining (stopping) from drug consumption. Since the body had probably gotten used to the drug in its system, removing it creates different symptoms which can vary from how used to the drug the body was or how strong it was.

These include physical and psychological symptoms, such as an intense craving.

An example of abstinence syndrome can be muscle contractions and spasms following opioid withdrawal.

It would be recommended that Bruce gets help or is under observation during this stage since the symptoms can cause such a disturbance that he will likely want to use the drug again in order to stop the discomfort.