Spiking symptoms include confusion, feeling far more drunk than you should, loss of balance, nausea or vomiting, problems with vision, memory loss and passing out. Needle spiking causes similar effects. If you think you or a friend has been spiked, tell the people you’re with and venue staff, stay somewhere safe, get medical help (999 if symptoms get worse, otherwise 111) and report it to the police quickly, because some drugs leave the body within 12 hours.
Updated 2 October 2026 · Sources: police.uk, NHS, Home Office, legislation.gov.uk, Drinkaware
Call 999 if someone can’t be woken, is struggling to breathe, has a seizure or is getting rapidly worse. If they are unresponsive but breathing normally, put them in the recovery position and stay with them until help arrives.
Spiking in the UK in four numbers
Report figures, the 74% and the average age come from the Home Office report “Understanding and tackling spiking” (30 January 2024), covering police reports in England and Wales. The 12-hour figure is from police.uk spiking advice.
What are the symptoms of a spiked drink?
Symptoms depend on what was used, and they can look a lot like having drunk too much. Common signs include lowered inhibitions, loss of balance, feeling sleepy, confusion, problems with vision, nausea, vomiting and unconsciousness. Police advice is simple: if you start to feel strange, or more drunk than you should after what you’ve had, get help straight away.
How do people realise they’ve been spiked?
Most people don’t see it happen. In survey answers quoted by the Home Office, the most common clue was simply feeling weird rather than drunk, followed by memory loss, passing out and confusion. That’s why it matters to trust the feeling that something is wrong and to look out for friends who suddenly seem far worse than their drinks explain.
Key: share of Global Drug Survey respondents who believed they had been spiked, by what made them suspect it. “Felt weird” means feeling weird or not drunk. People could give more than one answer. Quoted in the Home Office report “Understanding and tackling spiking” (January 2024).
What is needle spiking?
Police define needle spiking as injecting drugs into someone’s body with a needle or an auto-injector pen without them knowing or agreeing. The effects are similar to drink spiking. Spiking can also happen through food, a cigarette or a vape, and giving someone more alcohol than they agreed to counts too. If you think you were injected, tell the doctor or nurse who treats you.
What should you do if you think you’ve been spiked?
1. Tell your friends and the staff
2. Stay somewhere safe
3. Get medical help
4. Report it quickly
5. Follow up
How long do spiking drugs stay in your system?
It depends on the drug. Police.uk says some drugs can leave the body within 12 hours, while testing may still be possible up to four days later. That’s why reporting quickly matters: police usually take a urine sample. Don’t wait until you feel better the next day. If you’re unsure whether it was spiking, report it anyway and let the police decide.
Can needle spiking give you HIV or hepatitis?
NHS guidance says the risk of catching HIV, hepatitis B or hepatitis C from a suspected needle spiking is believed to be very low. HIV medicine after exposure (PEP) is generally not advised, but you may be offered a hepatitis B vaccination. Viruses can take weeks to show in blood tests, so arrange later testing with your GP or a sexual health clinic.
Is spiking illegal in the UK?
Yes. Spiking is already a crime, prosecuted under the Offences Against the Person Act 1861 (and the Sexual Offences Act 2003 where a sexual offence is involved), with up to 10 years in prison. The Crime and Policing Act 2026 adds a specific spiking offence for England, Wales and Northern Ireland, but section 134 is not yet in force. It does not cover Scotland, which has its own law.
Status checked on legislation.gov.uk on 2 October 2026. Key: ▬ amber = passed but waiting to start; ▼ red = not covered. Whatever the law, report spiking to the police wherever you are in the UK.
Frequently asked questions
It varies with the substance, the dose and the person. Treat any sudden change seriously, for example a friend who goes from fine to confused, unsteady or very sleepy after one drink. Don’t wait to see if it passes: tell staff and get medical advice.
Hospital treatment is based on your symptoms rather than identifying the exact drug, so A&E may not run a spiking test. Evidence testing is usually done by the police, which is another reason to report quickly.
For the signs, prevention and reporting steps in more depth, read our drink spiking guide. If a friend passes out, use the recovery position, and before a big night read our freshers’ week safety checklist. Not sure which number to ring? See which number should I call.
Sources
- police.uk: what is spiking
- police.uk: what to do if someone has spiked you
- Home Office: Understanding and tackling spiking (January 2024)
- legislation.gov.uk: Crime and Policing Act 2026, section 134
- NHS: drink spiking and date rape drugs
- North Tees and Hartlepool NHS Foundation Trust: drink and needle spiking
- Drinkaware: drink spiking and date rape drugs
General information, not medical or legal advice. In an emergency, always call 999.
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