Dissociative anaesthetic

Ketamine addiction: signs, withdrawal & UK treatment

Name: Ketamine addiction
Creator: Clearpath Editorial Team

Ketamine is a dissociative anaesthetic used medically and, at higher recreational doses, taken for its detached, floaty effects. UK use has climbed sharply since 2023, and daily users often develop bladder damage, cramping stomach pain ("K-cramps") and psychological dependence long before they think of themselves as addicted.

Reviewed to our medical review processWritten by Clearpath Editorial TeamMedically reviewed by Clearpath Clinical TeamLast reviewed 10 July 2026

Signs of ketamine addiction

Using every day, or bingeing over multiple days
Bladder pain, urgency or blood in urine (ketamine bladder)
Severe cramping stomach pain that eases when you use again
Tolerance climbing — needing more to feel the same
Failed attempts to cut down or stop
Using alone, or hiding use from partner or family

Getting treatment

Ketamine dependence rarely needs medical detox but responds well to structured inpatient or intensive-outpatient rehab. Any urinary symptoms should be reviewed by a urologist early — bladder damage is the main long-term risk.

All UK clinics we refer to are CQC-regulated.

Ketamine withdrawal timeline

Craving and low mood

24–72 hours

Ketamine withdrawal is mainly psychological. Cravings, anxiety, low mood and disturbed sleep peak in the first 2–3 days.

Mood dip and cramp relief

Days 4–14

Bladder and stomach pain usually start to settle by the end of week 1. Low mood and cravings can persist. Some people need short-term medical support for anxiety and sleep.

Bladder healing and PAWS

Weeks 2–8

Bladder symptoms often improve significantly with sustained abstinence; irreversible damage needs urology input. Post-acute withdrawal (mood swings, low motivation) can last weeks and is where relapse risk is highest.

How long does ketamine stay in your system?

Urine2–4 days (up to 14 in heavy daily users)

BloodUp to 24 hours

SalivaUp to 24 hours

HairUp to 90 days

Ketamine deaths in England (2023)

Registered deaths

Year-on-year

+60.6%

10-year trend

+650%

Ketamine-related deaths, England and Wales, registered. Small absolute numbers but rising rapidly alongside recreational use.

Source: ONS Deaths related to drug poisoning in England and Wales: 2023 registrations. See regional statistics.

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Common questions

Is ketamine addictive?▾

Yes. Ketamine causes strong psychological dependence, tolerance climbs quickly, and daily users typically find it very hard to stop without support. Physical withdrawal is milder than alcohol or opioids, but the compulsion to use is intense.

What is ketamine bladder?▾

Ketamine damages the lining of the bladder. Symptoms include needing to urinate constantly, pain when passing urine, cramping in the lower abdomen and blood in the urine. Left untreated, the bladder can shrink and scar permanently.

How long does ketamine withdrawal last?▾

Acute symptoms — craving, anxiety, low mood, poor sleep — usually peak in the first 3 days and settle over 1–2 weeks. Low mood and cravings can linger for 4–8 weeks (post-acute withdrawal), which is when relapse risk is highest.

Can I get help for ketamine addiction on the NHS?▾

Community drug services (usually Change Grow Live, We Are With You or Turning Point) offer free outpatient support in most UK areas. NHS inpatient detox for ketamine specifically is uncommon; residential rehab is nearly always private or funded via a local authority referral.

Do I need residential rehab for ketamine?▾

Not everyone does. If use is daily, bladder symptoms have started, or you've tried and relapsed, residential rehab (typically 28 days) gives the strongest chance of a full stop. Milder patterns often respond to intensive-outpatient therapy at home.

This page is educational. If you're currently in danger or in a medical emergency, call 999.