Chemsex has become an increasingly visible issue in many cities worldwide.
What is 'Chemsex'?
“Chemsex” is a term used to describe sexual activity that is deliberately combined with psychoactive substances to facilitate, prolong or intensify sex. It has been particularly documented among gay, bisexual and other men who have sex with men (GBMSM), but is increasingly seen in other communities too.
Common features include:
Common features include:
- Use of specific drugs such as crystal methamphetamine, GHB/GBL and mephedrone, sometimes alongside other substances and erectile-dysfunction medicines.
- Encounters arranged via dating / hook-up apps, often with multiple partners.
- Sessions that may last many hours or days, frequently taking place in private homes, hotels, short-term lets, saunas or sex venues.
For cities and accommodation operators, chemsex is relevant not because they are “hosting chemsex parties” intentionally, but because their spaces can be used for them, sometimes with associated medical, safeguarding, or nuisance risks.
Why does Chemsex need to be managed safely?
Practical steps cities, hotels and short-term lets can take
The aim is not to police private behaviour, but to reduce harm, protect guests, and meet legal and safeguarding duties. Key actions include:
Who needs to be involved?
A safe, effective response to chemsex is inherently multi-agency. The following partners have important roles:
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Examples of emerging best practice:
1
London, UK
Sexual health services in London have pioneered dedicated chemsex support pathways, combining sexual-health care, mental-health input and harm-reduction advice. Some clinics have developed chemsex safety kits (with information, safer-use materials and contacts) to reduce harms among those already engaging in chemsex.
2
Asia-Pacific
A recent Asia-Pacific chemsex toolkit for clinical service providers, developed with UNAIDS and regional partners, offers structured guidance on non-judgemental engagement, risk assessment, and integrated sexual-health and mental-health responses.
Although aimed at clinicians, it demonstrates how clear, regionally adapted standards can support services that people trust and use.
Although aimed at clinicians, it demonstrates how clear, regionally adapted standards can support services that people trust and use.
3
Barcelona, Spain
Qualitative research on chemsex in Barcelona has informed understanding of how and why people engage in chemsex, what harms they experience, and what prevention they say they need. This has been complemented by training programmes for health professionals on chemsex (including role-play workshops on clinical response). For cities, this kind of evidence-informed, capacity-building approach is a strong model to emulate.
4
South East Asia
Community groups such as Lighthouse in Vietnam and others in Eastern Europe and Central Asia have developed peer-led outreach, online content and helplines tailored to MSM and transgender communities involved in chemsex, including digital campaigns and Q&A services.
For local authorities and hotel sectors, partnering with such organisations can provide trusted referral routes and culturally competent support for guests and residents.
For local authorities and hotel sectors, partnering with such organisations can provide trusted referral routes and culturally competent support for guests and residents.
5
Europe
European networks have produced harm-reduction manuals for chemsex that emphasise the importance of low-threshold services, non-stigmatising communication and the provision of appropriate equipment to reduce high-risk behaviours.
These documents don’t excuse or endorse drug use; they aim to prevent deaths, infections and long-term harm, which ultimately benefits communities and services.
These documents don’t excuse or endorse drug use; they aim to prevent deaths, infections and long-term harm, which ultimately benefits communities and services.
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Final thoughts
For cities, hotels, Airbnbs and short-term let operators, chemsex is not just a “niche” issue, it sits squarely within public health, safeguarding, night-time economy management and brand reputation.
A constructive response doesn’t mean condoning illegal activity; it means:
- Recognising chemsex as a real and evolving phenomenon
- Equipping staff to respond safely and compassionately
- Building clear partnerships with health, community and emergency services
- Protecting guests, neighbours and staff from preventable harm
Handled well, this becomes part of a wider commitment to safer, more inclusive nights, where people feel able to seek help early and where cities balance freedom, privacy and safety with care.
