Cloudy. Medium (40%) chance of showers, most likely during the morning. Winds NE 15 to 25 km/h. Wednesday: Partly cloudy. Slight (30%) chance of a shower in the morning. Light winds becoming NE 15 to 25 km/h in the early afternoon.
Side effects. The most common side effects reported with naltrexone are gastrointestinal complaints such as diarrhea and abdominal cramping. These adverse effects are analogous to the symptoms of opioid withdrawal, as the mu receptor blockade will increase GI motility. Naltrexone has been reported to cause liver damage (when given at doses higher than recommended).
319 Reviews. Naltrexone is the generic form of the brand-name drug Vivitrol, which is used to prevent substance abuse in people who have been addicted to alcohol or opioid pain medications.Examples of opioid painkillers include Norco (hydrocodone/acetaminophen), OxyContin (oxycodone), and codeine.lthough primarily an oral drug taken in pill form, naltrexone implants, which are inserted into the lower abdominal wall under local anesthetic, have been used to treat opioid addiction and/or abuse/misuse. Implants release a controlled amount of naltrexone into the body and are effective for three to six months.