BackgroundSince the mid-2010s, slamsex—sexualized drug use involving intravenously injecting meth—has rapidly emerged in metropolitan gay communities as a sociosexual practice necessitating harm reduction interventions. However, its impact on gay men's sociosexual lives and HIV technologies is not well understood. This paper addresses this gap by investigating two intertwined temporal dimensions of slamsex, viewing it as a form of slow edgework in post-AIDS Taiwan. MethodsEthnographic research was conducted in Taiwan between 2022 and 2024, involving 30 interviews with gay men who practice slamsex and 7 HIV/AIDS NGO representatives. Semi-structured interviews focused on slamming events, covering their edge, transition, and healthcare network. ResultsFindings reveal paradoxes within edgework, demonstrating that slamsex can be both extreme and risky, as well as slow and mundane. Participants navigated state surveillance and the materiality of syringes through meticulous risk calculations and digital-savvy strategies for acquiring clean syringes. The practice involved risk and a networked economy of care services provided by other injectors. In response to HIV technologies (PrEP and viral load disclosure), gay men in this study normalized HIV/AIDS while developing a sense of vulnerability to their own infection. ConclusionIn the era of HIV/AIDS normalization, slamsex as slow edgework underscores the need for temporally and spatially nuanced discussions on drug policy. This study highlights the importance of culturally tailored interventions that consider slow, networked interactions to provide harm reduction for men on the chemsex scene, as well as the needs for more evidence-based, non-discriminatory research on queer sexual health and drug studies.