How long does naltrexone take to work?
Naltrexone is effective within one hour of ingestion. Q: Are there some people who should not take naltrexone? A: Naltrexone should not be used by pregnant women, as studies have never been undertaken to demonstrate the safety of naltrexone in this situation. Also, people who are dependent on opioid drugs, like heroin or morphine, must stop their drug use at least 7 days prior to starting naltrexone. Q: What does it feel like to be on naltrexone? A: Patients usually report that they are largely unaware of being on naltrexone. Naltrexone is not addicting, either emotionally or physically, and can be interrupted without adverse effects. While it does reduce alcohol craving, it does not interfere with the experience of other types of pleasure. Q: What are the side effects of naltrexone? A: In the largest study, the most common side effect of naltrexone affected only a small minority of people and included the following: nausea (10%), headache (7%), dizziness (4%), fatigue (4%), insomnia (
