Vivitrol (Naltrexone) How Long Does It Stay in Your System?
- 1. How Long Does Vivitrol (Naltrexone) Stay in Your System?
- 2. Vivitrol (Naltrexone) Prescription Facts
- 3. Vivitrol (Naltrexone) Regulations
- 4. Most Commonly Abused Drugs Containing Vivitrol (Naltrexone)
- 5. How Vivitrol (Naltrexone) Affects The Brain and Body
- 6. Half-Life Of Vivitrol (Naltrexone)
- 7. Factors That Influence How Long Vivitrol (Naltrexone) Stays
- 8. How Long Does Vivitrol (Naltrexone) Stay in Your Urine, Hair, and Blood?
Vivitrol blocks opioid receptors in the body. With no available opioid receptors to act on, the presence of heroin in the blood can have life-threatening effects.
The efficacy of naltrexone is largely dependent on whether or not the patient carries a specific variant of the opioid receptors gene: the G allele of OPRM1. Vivitrol is much more likely to work in patients who carry this gene. 25% of patients seeking treatment for addiction carry this gene variant. White patients with the G allele of OPRM1 have a five times greater rate of effectiveness when taking naltrexone. This gene variant is most common among people of Asian descent. Only 30% of Europeans and Indians carry the gene, while between 60% to 70% of people of Asian descent are carriers.
Side effects of naltrexone may include nausea, difficulty sleeping, headaches, and anxiety. Metabolizing naltrexone can be taxing on the liver and is contraindicated for individuals with liver failure.
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