Hi-fun, homepas and incidental sex with drugs: a qualitative study developing a locally grounded definition of hi-fun (chemsex) compared to other sexualised drug use types practiced by gay, bisexual and other men who have sex with men in Thailand.

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Title: Hi-fun, homepas and incidental sex with drugs: a qualitative study developing a locally grounded definition of hi-fun (chemsex) compared to other sexualised drug use types practiced by gay, bisexual and other men who have sex with men in Thailand.
Authors: Witzel TC; Mahidol Center for Health, Behavior and Society, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand. c.witzel@ucl.ac.uk.; Institute for Global Health, University College London, London, UK. c.witzel@ucl.ac.uk., Waratworawan W; Mahidol Center for Health, Behavior and Society, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand., Samoh N; Mahidol Center for Health, Behavior and Society, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand., Rodger AJ; Institute for Global Health, University College London, London, UK., Prabowo H; Asia Pacific Network of People Living With HIV/AIDS, Bangkok, Thailand., Lai G; International Drug Policy Consortium, Bangkok, Thailand., Bootsan P; ACTTEAM, Khon Kaen, Thailand., Chaicharoen I; ACTTEAM, Khon Kaen, Thailand., Sawangying T; Health and Opportunity Network, Pattaya, Thailand., Thanawattewakul R; Health and Opportunity Network, Pattaya, Thailand., Nonenoy S; Institute of HIV Research and Innovation, Bangkok, Thailand., Thongsuksangcharoen S; Institute of HIV Research and Innovation, Bangkok, Thailand., Phanuphak N; Institute of HIV Research and Innovation, Bangkok, Thailand., Srichau S; APCOM Foundation, Bangkok, Thailand.; Service Workers In Group Foundation, Bangkok, Thailand., Ngamee V; Ozone Foundation, Bangkok, Thailand., Bourne A; Australian Research Centre in Sex, Health and Society, La Trobe University Melbourne, Victoria, Australia., Guadamuz TE; Mahidol Center for Health, Behavior and Society, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Source: Harm reduction journal [Harm Reduct J] 2026 Feb 26; Vol. 23 (1). Date of Electronic Publication: 2026 Feb 26.
Publication Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
Journal Info: Publisher: BioMed Central Country of Publication: England NLM ID: 101153624 Publication Model: Electronic Cited Medium: Internet ISSN: 1477-7517 (Electronic) Linking ISSN: 14777517 NLM ISO Abbreviation: Harm Reduct J Subsets: MEDLINE
Database: MEDLINE Ultimate
Description
ISSN:1477-7517
DOI:10.1186/s12954-026-01426-w