Drug-Induced Psychosis

1) What it is

Drug-induced psychosis is when a person experiences psychosis symptoms — a loss of contact with reality — that are triggered or significantly worsened by substances.

These substances may include:

• recreational drugs
• prescription medications
• misuse of medication
• withdrawal from alcohol or drugs

Psychosis symptoms can include:

• hallucinations (seeing or hearing things others don’t)
• delusions (strong beliefs that aren’t true)
• paranoia or extreme suspicion
• confused, disorganised thinking or speech

Drug-induced psychosis can happen:

• while taking a substance
• during intoxication or a comedown
• after heavy or frequent use
• during withdrawal
• in people with higher vulnerability (e.g. family history of psychosis)

It is treatable, but always requires urgent assessment due to safety risks.

NHS explains psychosis as a condition affecting perception of reality, requiring prompt support.

2) What it feels like (real-life examples)

People may describe experiences such as:

• “I felt like people were watching me.”
• “I thought there were hidden messages meant for me.”
• “I heard voices and panicked.”
• “Everything felt threatening.”
• “I couldn’t trust what was real.”
• “My thoughts stopped making sense.”
• “I thought I was going to die or be harmed.”

It can feel:

• terrifying and confusing
• mentally overwhelming
• like the world is full of danger
• exhausting and disorientating
• deeply shameful afterwards

Loved ones may notice:

• sudden personality changes
• paranoia or fear
• agitation or restlessness
• withdrawal
• erratic or unsafe behaviour

3) Common signs & symptoms

NHS lists psychosis symptoms including hallucinations, delusions, and confused thinking.

Hallucinations

• hearing voices
• seeing shadows or figures
• feeling touched when nobody is there

Delusions / paranoia

• believing others are plotting against you
• believing you’re being followed or targeted
• believing you have special powers or messages
• believing reality is staged or unreal

Thinking and behaviour changes

• confused or racing thoughts
• disorganised speech
• agitation or panic
• aggression (often fear-driven)
• severe anxiety
• not eating or sleeping

Physical and lifestyle clues

• recent or heavy substance use
• severe insomnia
• dehydration
• comedown after binge use
• mixing substances (higher risk)

4) What causes it / risk factors

Drug-induced psychosis can be triggered by:

• cannabis (especially high-strength or frequent use)
• stimulants (cocaine, amphetamines)
• hallucinogens (LSD, mushrooms)
• synthetic drugs
• alcohol withdrawal (severe cases)
• certain medications (rare but possible)

Risk increases with:

• high doses or frequent use
• mixing substances
• lack of sleep
• stress or trauma
• personal or family history of psychosis or bipolar disorder
• adolescence or young adulthood

Even people with no previous mental illness can experience drug-induced psychosis.

5) Triggers (what can make it worse)

Common triggers include:

• continued substance use
• cannabis or stimulants during stress
• withdrawal or comedowns
• sleep deprivation
• dehydration or not eating
• isolation and fear spirals
• crowds, noise, bright lights
• arguing directly with delusions

Psychosis often worsens when the person feels unsafe or overstimulated.

6) What helps right now (fast relief tools)

Drug-induced psychosis should be treated as urgent.

Urgent assessment

• contact NHS urgent mental health services
• use emergency services if immediate danger

Early intervention reduces risk and duration.

Create a calm environment

• reduce noise and lights
• limit people around them
• one calm, reassuring person
• slow speech and movements

Do not argue with delusions
Instead of challenging beliefs, try:

“That sounds frightening. I’m here with you.”

Support hydration and rest (if safe)

• water
• blanket
• calm sitting

Remove risks

• move away from crowds
• remove access to substances
• avoid confrontation

Safety comes first.

7) Longer-term self-help strategies

After the acute episode:

1. Stop substance use
   Avoiding the triggering substance is essential.
2. Rebuild sleep stability
   Consistent sleep dramatically reduces relapse risk.
3. Follow-up assessment
   Important to rule out:

• underlying bipolar disorder
• psychosis vulnerability

4. Relapse prevention plan
   Write down:

• early warning signs
• triggers
• who to contact
• steps to take

5. Mental health recovery support
   Support may be needed for:

• shame
• anxiety or depression
• trauma from the episode

8) Treatment options (what usually helps)

Treatment depends on severity and cause, but may include:

• urgent assessment and monitoring
• stopping substances safely
• short-term antipsychotic medication
• treatment for sleep, anxiety, or mood
• referral to Early Intervention in Psychosis (EIP)
• substance misuse services

NHS guidance states psychosis should beEarly assessed and treated.

9) Medication overview (plain-English)

Medication may be used to:

• reduce hallucinations and delusions
• calm agitation and panic
• stabilise sleep

Medication choice depends on severity and risk.
Do not mix substances with medication without medical advice.

10) Work, relationships & daily life tips

Work

• take recovery time
• avoid stress overload
• stabilise sleep first
• gradual return to routine

Relationships
Loved ones can help by:

• staying calm
• not arguing beliefs
• encouraging follow-up care
• supporting substance avoidance

Helpful phrase:

“We can get through this. Let’s get support.”

Daily life

• avoid drugs and alcohol initially
• prioritise sleep, food, hydration
• reduce overstimulation
• attend follow-up appointments

11) When to seek urgent help

Get urgent help immediately if:

• voices or paranoia are present
• the person is unsafe or aggressive
• they cannot care for basic needs
• they haven’t slept for 2+ nights
• symptoms escalate rapidly

Psychosis is urgent — do not wait it out.

12) Trusted help & resources

Information

• NHS: Psychosis overview

Urgent mental health support

• NHS: Urgent mental health help

Substance support

• FRANK

Mental health support

• Mind: Psychosis support
• Rethink Mental Illness

24/7 emotional support

• Samaritans: 116 123
• Shout: text SHOUT to 85258

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