Other Effects

Methamphetamine use remains disproportionately prevalent among certain populations, including some men who have sex with men (MSM), although methamphetamine use disorder affects individuals across all demographic groups. Methamphetamine may increase libido, reduce inhibitions, prolong sexual activity, and contribute to high-risk sexual behaviors.^20,43

The increased prevalence of HIV infection, hepatitis B, hepatitis C, and other sexually transmitted infections (STIs) observed among some individuals who use methamphetamine is primarily related to high-risk sexual practices, injection drug use, and needle sharing rather than the direct pharmacologic effects of methamphetamine itself.^20,43

Dental professionals should recognize that patients with methamphetamine use disorder may present with complex medical histories, including chronic viral infections, co-occurring substance use disorders, psychiatric illness, and other chronic medical conditions. A thorough medical history, standard infection prevention practices, and appropriate medical consultation when indicated remain essential for the safe delivery of dental care.^1,13,28