In south Tehran, harm reduction workers are significantly improving the lives of marginalized individuals, including drug users and the homeless, with support from the UNODC Iran. Their initiatives focus on drug and HIV prevention, treatment, and care, aiming to reduce addiction and protect vulnerable populations. Key services include hygienic support, medical referrals, methadone treatment, and counseling. Special attention is given to women and homeless men, addressing their specific needs. The holistic approach emphasizes personalized care, education, and employment to foster long-term recovery. These efforts exemplify compassion and empowerment, aiming to inspire similar programs elsewhere for a healthier community.