Intermediate
Technical
IVT
polysubstance use
Concurrent or alternating use of multiple psychoactive substances by an individual.
Full Definition
A pattern of substance use characterized by the consumption of multiple different psychoactive substances either simultaneously or in close temporal proximity. This pattern complicates assessment, treatment planning, and withdrawal management due to complex drug interactions, varied withdrawal timelines, and increased medical risks. Polysubstance use is associated with more severe addiction presentations, higher treatment complexity, and increased risk of overdose and medical complications.
Usage
Usage note: Hyphenate when used as an adjective; maintain as separate words when used as a noun phrase.
In Context
- "The patient's polysubstance use pattern included alcohol, cocaine, and prescription opioids." — Clinical assessment
- "Polysubstance use requires specialized treatment protocols due to complex interaction effects." — Treatment planning document
Also known as
polydrug use
multiple substance use
Contrasted with
single-substance use
monodrug use
Don't confuse with
substance use disorder
cross-addiction