en Clinical Medicine Clinical Medicine نامه به سردبیر Letter to the Editor <span style="font-size:12pt"><span new="" roman="" style="font-family:" times=""><span style="font-size:14.0pt">Erectile dysfunction in male patients receiving MMT is a complex condition influenced by both biological and psychological factors. Methadone&#39;s effect on hormonal balance and the nervous system can disrupt sexual function, while mental health issues related to addiction and recovery can exacerbate the issue. An effective management plan should include hormonal assessment, psychological support, pharmacological therapy, and patient education. Encouraging healthier lifestyle choices and addressing both the physical and emotional aspects of ED can significantly enhance sexual health and overall quality of life for individuals in treatment for substance abuse.</span><span style="font-size:14.0pt"></span></span></span><br> &nbsp; Erectile Dysfunction, Methadone Maintenance Therapy, fertility 11 11 http://journal.zums.ac.ir/browse.php?a_code=A-10-7338-1&slc_lang=en&sid=1 Nader Aghakhani nader1453@umsu.ac.ir 5200319475328460090329 5200319475328460090329 No Food and Beverages Safety Research Center, Urmia University of Medical Sciences, Urmia, Iran Béatrice Marianne Ewalds Kvist Bewaldskvist@gmail.com 5200319475328460090330 5200319475328460090330 No Department of Psychology, Stockholm University, Stockholm, Sweden Roya Naderi r_naderi_s@yahoo.com 5200319475328460090331 5200319475328460090331 Yes Nephrology and Kidney Transplant Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran