Are Naltrexone Implants safe enough?
According to the two articles, published in the latest Medical Journal of Australia, an urgent analysis of the use of naltrexone for heroin and alcohol dependence is required as there are reports of harmful and unpleasant reactions.
Opioid dependence
Associate Professor Robert Ali, Director of the Drug Alcohol Services Council in Adelaide, and his co-authors stated that because of naltrexone‘s inexpensive, long-acting and usually well accepted effects it is considered a striking treatment for opioid dependence.
Oral naltrexone is used as a cure for heroin and alcohol dependence
Naltrexone implants
However, the success and safety of oral treatments is related to poor patient observance to taking regular doses.This has led to the expansion of long-acting naltrexone implants and storing injections.
Naltrexone implants have not been permitted for human use in Australia, but these implants are being supplied through some private clinics.

