Substance/Medication-Induced Bipolar and Related Disorder
Substance/medication-induced bipolar and related disorder involves a persistent elevated, expansive or markedly irritable mood with increased energy that is causally linked to exposure, intoxication or withdrawal.
A causal relationship must be established
The pattern may begin during substance use, soon after intoxication or withdrawal, or after starting or changing a medicine. Reduced need for sleep, rapid thinking, increased speech, inflated confidence, impulsivity or dangerous activity can represent a major change from usual functioning.
Temporary stimulation or a side effect is not automatically a bipolar disorder. Clinicians assess severity, duration, function and whether the specific agent can produce the syndrome. Previous episodes without exposure or persistence after the expected effect may support an independent bipolar condition.
Assessment
- A prominent, persistent elevated, expansive or irritable mood occurs with increased energy, with or without depressive symptoms.
- The syndrome begins during or soon after intoxication, withdrawal or medicine exposure and the agent is known to be capable of causing it.
- Independent bipolar disorder, delirium, psychosis from another cause and medical conditions are considered through history, examination and appropriate testing.
- Sleep, judgement, spending, driving, aggression, psychosis, suicide risk and the ability to care safely for oneself are assessed immediately.
Acute care and follow-up
Only the prescriber decides whether a medicine should be gradually reduced, changed or stopped. Acute mania or psychosis may require medication and hospital care regardless of the cause. Abrupt unsupervised withdrawal can create additional danger.
Follow-up continues long enough to determine whether symptoms resolve with the exposure or reveal an independent bipolar pattern. Substance-use treatment and harm reduction are included when needed, without stigma or assuming that every future mood change has the same cause.
When urgent help is needed
Markedly reduced sleep, rapid speech, uncontrolled spending, dangerous behaviour or psychosis after a substance or medicine change needs same-day medical assessment. Severe confusion, seizure, violence, suicidal intent or inability to remain safe is an emergency.