Chemsex can enter your life as something that can feel manageable. The odd weekend here, a session there, often involving chemsex drugs—substances like GHB, GBL, cocaine, ketamine, and methamphetamine—commonly used to enhance sexual experiences. But for a lot of people, that boundary can easily start to move and blur. The sessions might get longer, chemsex use can lead to risky sexual behaviours, and the line between choosing to use and needing to use gets harder to distinguish, impacting a person’s life in many ways.
If you’ve started to notice that chemsex is affecting your health and relationships, this page is here to help you understand your next steps.
We cover when the line crosses from recreational chemsex use into something that needs professional attention. We also explore what treatment actually looks like if you do decide to seek help.
What is chemsex?
Chemsex refers to the use of different types of chemsex drugs to help or enhance sex, most commonly among men who have sex with men. Common chemsex drugs include GHB, mephedrone, methamphetamine, cocaine, and ketamine, which are used to enhance sexual experiences, prolong sexual activity, and increase sexual pleasure and sexual satisfaction. The term was first coined in UK medical literature to help describe the intentional use of crystal meth, GHB/GBL, mephedrone, and sometimes ketamine during sexual activity.
These drugs are specifically chosen for their addictive properties and their ability to intensify sexual behaviour, leading to both physical and psychological dependency. This can result in dual addiction, where individuals become dependent on both drug use and compulsive sexual behaviour.
There’s reason to why these drugs are specifically used, too, for example:
- Crystal meth and mephedrone have the ability to increase arousal and stamina. Methamphetamine, commonly referred to as meth, is a powerful illicit drug that can be smoked, snorted, injected, or taken in pill form, leading to intense feelings of euphoria and increased sexual arousal.
- GHB/GBL is a Class C sedative that acts as a disinhibitory, helps to lower boundaries, reduce pain, and carries a risk of addiction and severe side effects.
- Ketamine is also used to reduce pain during sexual activity and is valued for its dissociative characteristics.
Within the chemsex scene, there’s also something known as “slamming” which refers to injecting these types of drugs rather than snorting or swallowing them. This is because this way of consumption can produce a faster and more intense effect. The problem, of course, lies in injecting itself, which can cause additional risks to everyone involved.
Chemsex is often associated with gay or bisexual men, but bisexual men and people of all sexual orientations may engage in chemsex. The prevalence of chemsex use among men who have sex with men (MSM) ranges from 3% to 29%, indicating a significant portion of this population may be at risk for addiction and its associated harms. Chemsex users are often motivated by the pursuit of heightened sexual experiences, sexual pleasure, and sexual satisfaction, and may engage in unprotected sex with multiple partners, significantly increasing the risk of sexually transmitted infections (STIs) and other health consequences.
For a broader look at what chemsex involves and how it has developed in the UK, our existing guide covers this in more detail.
If chemsex has become a problem for you or someone you care about, Rehab Today can help. Call us on 08000 380 480 for a confidential conversation about your options.
When does chemsex become an addiction?
This may sound like a strange question to ask, because it may seem obvious when drug use has crossed from recreational and occasional use to something more troubling. But it’s rarely that simple, especially when the drug taking itself isn’t the main intention.
Understanding chemsex addiction is crucial, as it often involves dual addiction—a simultaneous dependence on both drugs and sexual behaviour. It’s important to start recognising chemsex as a unique phenomenon that requires specialized attention, distinct from traditional drug or sex addiction frameworks.
For example, a study of gay men in South London found that the participants described going through years worth of sessions before recognizing that things had moved beyond their control.3
So, why does this happen? Well, we first have to look at what makes a chemsex addiction different from other forms of drug dependency. Chemsex addiction targets the brain’s reward system, reinforcing both drug use and sexual behaviour, which can lead to increased tolerance and compulsive patterns. Drug dependence develops, especially with substances like GHB/GBL, which require redosing every few hours to prevent withdrawal symptoms. Underlying issues such as trauma, depression, anxiety, and loneliness can also contribute to the development and persistence of chemsex addiction.
Then, there’s the growing reliance on the drugs to have sex at all, to the point where sober intimacy starts to feel difficult.
Signs that chemsex has crossed into something troubling might include:
- Needing drugs before any sexual encounter
- Sessions that stretch across multiple days
- Missing work or commitments
- Continued use despite things like overdose scares or health consequences
- An inability to connect sexually without substances
- Experiencing negative consequences and effects of chemsex, such as health, legal, or relationship problems, and high relapse rates triggered by dating apps or social associations between drugs and sex
The risks linked to chemsex
Of course, aside from the potential of addiction to the drugs involved in chemsex, there are also other risks that many overlook initially. Chemsex practices often involve risky sexual behaviours, such as unprotected sex with multiple partners, which increases the risk of sexually transmitted infections (STIs) and HIV. Engaging in chemsex can lead to taking bigger risks, as individuals may seek more extreme and dangerous sexual activities to achieve the same high, resulting in bigger risks to both physical and mental health. These behaviours can have a significant impact on physical health, including memory deficiencies, respiratory depression, and an increased risk of overdose—especially when substances are mixed with alcohol. In fact, police figures in London indicated that chemsex claimed three lives a month in 2023, highlighting the severe risks associated with these practices.
Overdose
GHB and GBL carry an unusually narrow margin between a recreational dose and a dangerous one.4 The risk of overdose increases depending on the amount a person takes and whether substances are mixed with alcohol. Even the smallest of miscalculations with dosages, or mixing with alcohol can cause someone to slip into unconsciousness and even experience respiratory failure.
Psychosis and mental health crises
Experimenting and using these types of drugs is also dangerous because they hold potential for causing and exacerbating mental health conditions. The effects of chemsex can be severe, with frequent co-occurrence of mental health issues such as depression, anxiety, trauma, and loneliness, highlighting the serious impact chemsex can have on mental wellbeing.
For example, research on crystal meth use found that up to 40% experience psychotic symptoms during use. Dependent users are also roughly three times more likely to develop psychosis than occasional users.5
Extended binges of any type of drug as strong as crystal meth can cause sleep deprivation which can then raise the likelihood of paranoia and depression during the comedown.
Sexual health risks
Chemsex also opens the door to all kinds of sexual health risks. Engaging in chemsex often results in risky sexual behaviors, such as having unprotected sex with multiple partners, which significantly increases the risk of sexually transmitted infections (STIs) and HIV transmission. Research across two London sexual health clinics found that men who engaged in chemsex had five times the odds of a new HIV diagnosis. They also found that there was over nine times the odds of catching hepatitis C, along with high STI rates.6
The act of slamming also compounds these risks further, as sharing injecting equipment carries the potential for bloodborne virus transmission including HIV and hepatitis.
Regular STI and HIV testing is important if you’re engaging in chemsex, and speaking to a sexual health clinic about PrEP or PEP can help reduce your risk. For those not ready for abstinence, harm reduction strategies such as drug testing for contaminants and using clean needles are essential to minimise health risks.
How chemsex addiction treatment works
If you’re considering chemsex addiction treatment but not sure how it works, or worried about the process, this section aims to address those concerns. Treatment programs for chemsex addiction at PCP use a comprehensive approach, combining therapeutic interventions such as individual counselling, group therapy, and support groups, alongside professional help to support long-term recovery. Effective treatment typically requires a comprehensive, non-judgmental, LGBTQ+-friendly environment to ensure all individuals feel safe and supported throughout their recovery journey.
Assessment
Treatment for chemsex begins with a clinical assessment that covers your drug use, sexual health, mental health history and any immediate risk factors. The purpose is to understand the full picture so that the right level of care can be matched to your situation.
In some cases, outpatient support through a sexual health clinic can be the right starting point. Other people, especially those with GHB/GBL dependence or mental health difficulties, may benefit from residential treatment due to it being the safer option.
Detox and withdrawal
Of course, detox and withdrawal timelines will be different depending on which substance is involved. Drug dependence can make withdrawal particularly challenging, as both physical and psychological reliance on chemsex substances complicates recovery. Seeking professional help is crucial for safely managing withdrawal and addressing the complex aspects of chemsex addiction. Residential rehab is often considered an effective treatment for chemsex addiction, as it provides medically supervised detoxification and therapy programs to address underlying issues. Below we focus on two popular chem sex drug choices, GHB/GBL and crystal meth:
GHB/GBL withdrawal
GHB/GBL withdrawal is medically serious and symptoms can begin within hours of the last dose. The addictive properties of GHB/GBL mean that repeated use can quickly lead to physical and psychological dependence, especially as the effects and health risks are strongly influenced by how much a person takes.
These may include tremors, rapid heart rate, confusion, and in severe cases, seizures and delirium.
The withdrawal syndrome resembles alcohol withdrawal in its presentation but can be faster in onset and more resistant to standard treatment.
This is why GHB/GBL detox should always be medically supervised, ideally in an inpatient setting where dosing can be closely monitored.
Crystal meth withdrawal
Crystal meth withdrawal follows a different pattern in that the initial crash can involve extreme fatigue and extended sleep, followed by an acute phase of depression, vivid unpleasant dreams, increased appetite, and intense cravings.8
While not life-threatening in the way GHB/GBL withdrawal can be, the psychological weight of meth withdrawal is heavy and can last for several weeks.
Therapy
Because chemsex fuses drug use with sex, treatment has to address both together rather than treating them as separate problems.
Psychotherapeutic interventions for chemsex addiction include Cognitive Behavioral Therapy (CBT) and Acceptance and Commitment Therapy (ACT), which are effective in addressing the underlying thought patterns and behaviours associated with addiction.
CBT, for example, is a commonly used therapeutic approach because it can help identify the thought patterns and triggers that drive compulsive use. Developing coping mechanisms and the skills needed for long-term recovery is a key part of these therapies, equipping individuals to manage psychological and emotional challenges effectively.
Trauma informed therapy is another approach used, as it is important for those whose chemsex is connected to past experiences that haven’t been processed.
Group therapy sessions, including interpersonal group therapy, play a vital role in supporting recovery by fostering peer support, shared experiences, and collaborative efforts to maintain sobriety.
Research consistently shows that a high proportion of people seeking help for chemsex have experienced prior trauma, which makes this area of treatment important to address.9
Residential rehab vs outpatient chemsex support
Not everyone who develops a problem with chemsex needs residential treatment, and understanding the difference matters. The client group most affected by chemsex addiction is primarily LGBTQ+ individuals, who often face unique psychological and physical challenges. For this vulnerable group, specialized support groups—especially those that are LGBTQ+-friendly—provide critical peer support and a sense of community during recovery.
Outpatient support, whether through a sexual health clinic, a community drug service, or a specialist chemsex programme, may be appropriate if your drug use is at a lower level, you have a stable living situation, and you have a support network around you that is not connected to chemsex. While support groups like AA (Alcoholics Anonymous) and narco anonymous exist for traditional alcohol and drug addiction, chemsex addiction is often overlooked in these frameworks because it combines drug use and sexual behaviour in ways that do not fit neatly into existing categories. This highlights the need for chemsex to be recognized as a standalone issue, with tailored support groups and treatment approaches.
There is also a disconnect between sexual health clinics, which may lack addiction expertise, and drug services, which may lack sexual health knowledge. This gap can make it harder for people struggling with chemsex addiction to access comprehensive care.
Residential drug rehabilitation becomes the stronger option when one or more of the following applies:
- You are physically dependent on the drugs associated with chemsex or have medical conditions that make drug withdrawal dangerous.
- You are dealing with severe mental health difficulties alongside your drug use, such as active psychosis or suicidal ideation.
- Your living situation or social circle makes it difficult to stop, because the environment itself is connected to chemsex.
What residential treatment offers that outpatient settings cannot is sustained distance from the environment that maintains the addiction. That space allows new routines, coping strategies, and therapeutic relationships to develop without the constant proximity of triggers.
Recovery after chemsex
Rehab for chemsex also has a strong emphasis on the recovery process, focusing on overall well-being and a comprehensive approach that addresses the mind, body, and spirit. Good rehabs will provide a combination of medical, psychological, and social support to address the various aspects of addiction and its underlying causes. The ultimate goal is to help individuals regain control, achieve and maintain long-term recovery, and support a clean, sober lifestyle. It is important to seek support as part of your recovery journey, as chemsex addiction often requires integrated care that recognises the interconnected nature of drug use and sexual behaviour. Comprehensive, evidence-based therapies and peer support are essential to ensure you’re not just expected to continue recovery when you leave the doors of the rehab centre.
Aftercare
Recovery from chemsex comes with a specific set of challenges that generic addiction aftercare may not fully address. Peer pressure, especially from social environments, friends, or online communities, can play a significant role in both the initiation and continuation of chemsex, making it a crucial factor to address in recovery. The triggers for continued use are sometimes embedded in everyday technology and social life, like:
- Dating apps
- Certain areas
- Loneliness after a relationship ends
For many people, their social network was built around chemsex, which means recovery can involve rebuilding an entire social world alongside addressing the substance use itself. Stigma and fear of judgment are also significant barriers that can prevent individuals from seeking help for chemsex addiction, making compassionate and non-judgmental support essential.
Effective aftercare recognises the importance of each person’s own individual experience, understanding that chemsex addiction is a unique phenomenon intertwined with personal sexual experiences and trauma. Where passion lies for dedicated professionals like Sam Robinson and others in the field is in providing genuine, focused support and education tailored to the complex needs of those affected by chemsex.
Aftercare plans that work tend to include ongoing therapy, peer support through groups like Narcotics Anonymous or SMART Recovery, structured work on managing digital triggers, and continued sexual health follow-up including PrEP where appropriate.
Rebuilding intimacy and sex without drugs
This is the part that many treatment services overlook, but it matters enormously. If you’ve spent months or years associating sex exclusively with drugs, the prospect of sober intimacy can feel daunting. Chemsex drugs can artificially enhance or impair sexual performance, often prolonging activity or lowering inhibitions, which can make regaining sexual satisfaction and pleasure without them particularly challenging. Some people experience reduced libido during early recovery and some find that sex without drugs feels flat or emotionally exposed in ways they weren’t prepared for.
This is a normal part of the process, and therapy can help. Working with a clinician who understands the specific dynamics of chemsex recovery makes a difference here because this is territory where generic addiction counselling can fall short.
When to seek urgent help
Some chemsex situations require emergency care and it’s important to know when emergency services need to be contacted.
Call 999 immediately if someone:
- Loses consciousness
- Has a seizure
- Stops breathing normally
- Becomes unrousable after taking GHB/GBL
- Is acutely psychotic or at immediate risk of self-harm.
As scary as it might be, you need to tell paramedics exactly what has been taken. They will not involve the police, and being honest about the substances involved can save a life.
If you are experiencing GHB/GBL withdrawal symptoms such as vomiting or hallucinations in the hours after your last dose, attend A&E. Unmanaged GHB/GBL withdrawal can progress to seizures and delirium.
For non-emergency support, the NHS recommends contacting your GP or a local drug treatment service.
Speak to Rehab Today confidentially
If chemsex has started to affect your health, your relationships, or your ability to function day to day, professional support can help you regain control.
Chemsex users often face unique challenges due to chemsex practices, which can impact physical, mental, and sexual health and increase the risk of addiction. Recognising these risks and seeking professional help is crucial. Rehab Today provides drug rehabilitation programmes that include medically supervised detox and therapeutic support alongside aftercare planning, tailored to the specific needs of each person who comes through the door.
We understand that reaching out about chemsex takes courage, but know that our team is experienced and familiar with the specific dynamics involved. Every conversation is confidential.
If you’re not sure whether residential treatment is right for you, we can talk that through. Contact Rehab Today on 08000 380 480 or speak to our team through our website to take the first step.
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Dr Otulana is PCP’s longest-serving doctor. He is an experienced Physician with Specialist Interest in Substance Misuse Management and he has a wide range of experience in the assessment and management (including detoxification) of clients with various drug and substance addiction problems. Dr Otulana started practising as a doctor in 2000 and with over 10 years as an Addiction Physician. He is an Advanced Addiction Practitioner Member of Addiction Professionals and also holds the Certificate in Clinical Psychopharmacology (Part 1) of the British Association for Psychopharmacology. He is additionally a strong healthcare services professional with a Master of Business Administration (M.B.A.) degree from Cambridge University Judge Business School.






