An overindulgence in and dependence on a drug or other chemical.
'substance abuse' is correct and can be used in written English. You can use it to describe the misuse of and excessive consumption of alcohol or drugs, for example: "The organization is dedicated to helping people affected by substance abuse.".
It's called substance abuse.
Substance abuse is pervasive.
My substance abuse is done".
He struggled with substance abuse.
His substance abuse heightens.
Substance abuse," Daniel says.
Covert substance abuse?
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Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia