(--)-alpha-Acetylmethadol effects on alcohol and diazepam use, sexual function and cardiac function

Area of Science:

• Pharmacology
• Addiction Medicine
• Clinical Research

Background:

• Opioid maintenance therapy is crucial for managing opioid use disorder.
• Understanding the long-term effects of (–)-alpha-acetylmethadol (LAAM) on behavioral and physiological functions is important.
• Previous studies on methadone and heroin users indicated potential impacts on reproductive health.

Purpose of the Study:

• To examine the behavioral and physiological effects of LAAM maintenance therapy.
• To assess changes in alcohol and diazepam use, sexual behavior, testicular function, and cardiovascular function during LAAM treatment.
• To compare the effects of LAAM maintenance with methadone maintenance.

Main Methods:

• A 20-week study involving 67 men undergoing LAAM maintenance.
• Assessment of alcohol and diazepam use, sexual activity, and testicular function.
• Evaluation of cardiovascular function through exercise response and electrocardiograms.
• Comparison of subjects transitioning from methadone versus street heroin.

Main Results:

• A trend towards increased alcoholism-related behaviors was observed, but not alcohol consumption.
• Sexual activity showed a slight increase in reported ejaculations; interest remained constant.
• Semen volume was in the low normal range, with normal sperm motility and decreased abnormal morphology.
• Cardiovascular function and electrocardiogram abnormalities remained largely unchanged during LAAM maintenance.
• LAAM maintenance effects were comparable to methadone maintenance on the assessed functions.

Conclusions:

• LAAM maintenance appears to have limited adverse effects on sexual function, testicular function, and cardiovascular health.
• The observed effects of LAAM maintenance are similar to those reported for methadone maintenance.
• Further research may be warranted to fully elucidate the long-term physiological and behavioral impacts of LAAM.