I use this a lot. Minimal side effects and and often life altering benefits. The pills need to be taken twice daily and work better at 100mg/day. The shot is expensive but more effective. There is no question that this is the most underutilised med in addiction medicine mainly because doctors are either afraid of or ignorant how to detox patients from opiods. My alcoholics also stop drinking .
Naltrexone. Potential side effects of Naltrexone (Vivitrol/ Revia) include: nausea, vomiting, abdominal pain, loose stools, constipation, v appetite, insomnia, anxiety, irritability, headache, sedation,^ energy, v energy, rash & pain of muscles or joints. I have minimal experience with this medication.
Not really. Officially, you can find a long list of side effects from Naltrexone and i will not say that there are no side effects. From the practical standpoint, unless you use opioids, no significant side effects are reported. The problem with liver comes only with high doses. Some people are complaining of side effects directly related to the fact that opioid receptors are blocked.