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Crisis, Overdose and Urgent Addiction Help

Emergency signs, overdose response, dangerous withdrawal and crisis contacts in the US, UK, Spain, Switzerland and EU.

Evidence checked September 4, 2026 2 minute read
Suspected overdose is an emergency

Call your local emergency number now. If opioids may be involved and naloxone is available, give it according to its instructions, stay with the person, and be prepared to give another dose if they do not respond. See crisis contacts.

Act now when danger is immediate

Call your local emergency number for suspected overdose, severe breathing difficulty, loss of consciousness, seizure, severe withdrawal, chest pain, stroke symptoms, violent danger, or an immediate risk of suicide or serious self-harm. Do not rely on email, a website form or a private rehab admissions line.

Suspected opioid overdose

  1. Call emergency services.
  2. Give naloxone if available, following the product instructions.
  3. Support breathing or give rescue breaths if trained and advised.
  4. Place the person in the recovery position if they are breathing but unresponsive.
  5. Stay with them. More than one naloxone dose may be needed.

Possible signs include inability to wake, slow or absent breathing, blue or grey lips or nails, gurgling or choking sounds and very small pupils.

Severe alcohol or sedative withdrawal

Seizures, hallucinations, severe confusion, collapse, extreme agitation or rapidly worsening symptoms require emergency assessment. Do not try to manage severe alcohol or benzodiazepine withdrawal at home.

Suicide or self-harm crisis

If the person may act now, call emergency services, stay with them when safe, reduce access to immediate means when this can be done safely, and speak plainly: “Are you thinking about suicide?” Asking does not create suicidal thoughts. A crisis line can support the next step, but imminent danger still requires emergency response.

Emergency and crisis contacts

Location Immediate danger Crisis or addiction support
United States 911 988 Suicide & Crisis Lifeline; SAMHSA National Helpline 1-800-662-HELP (4357)
United Kingdom 999 NHS 111 for urgent advice; FRANK 0300 123 6600; Samaritans 116 123
European Union 112 Use the relevant national health or crisis service
Spain 112 024 suicide support line
Switzerland 144 ambulance or 112 143 crisis support

Numbers and availability can change. Verify local options when you are making a non-emergency plan.

While help is coming

  • Do not leave an unconscious person alone.
  • Do not make them vomit or put them in a cold bath.
  • Tell responders what may have been taken, when and in what amount.
  • Keep containers or medication lists if safe.
  • Do not drive if the person is unstable or if you are impaired.

After the immediate crisis

An overdose, severe withdrawal or suicidal crisis should lead to a reassessment of the treatment plan and level of care. Ask about overdose prevention, naloxone, medication treatment, psychiatric follow-up, safe discharge and the next appointment before leaving care.

Frequently asked questions

What should I do if someone may be overdosing?

Call emergency services immediately. Give naloxone when opioid overdose is possible and it is available, support breathing as instructed and stay with the person.

Can I let someone sleep off a suspected overdose?

No. Unresponsiveness, abnormal breathing, blue or grey lips, choking or inability to wake are emergency signs.

What withdrawal symptoms are urgent?

Seizures, hallucinations, severe confusion, collapse, chest pain, uncontrolled vomiting or rapidly worsening symptoms require emergency assessment.

Sources and further reading

  1. Lifesaving Naloxone — Centers for Disease Control and Prevention
  2. Alcohol-use disorder — NHS
  3. Línea 024 — Ministry of Health, Spain
  4. Emergency Numbers in Switzerland — Swiss Confederation
  5. Contact FRANK — Talk to FRANK

How this page was prepared

Prepared by the AddictionInfo Editorial Team and last evidence-checked on September 4, 2026. We distinguish education from medical advice, link material claims to primary or authoritative sources, and correct substantive errors transparently. Read our editorial standards.