What is naltrexone?

Naltrexone is a prescription drug. It belongs to a group of drugs known as opioid antagonists. These block the effects of heroin and other opioid drugs. Naltrexone is used in pharmacotherapy, in which a drug of dependence is replaced with a prescribed drug. Pharmacotherapy helps to stabilise people's lives and reduce the harms related to drug use.

Naltrexone street names (Nicknames)

ReVia, Vivitrol, Depade, Trexan, Nalorex

How long does naltrexone stay in your hair?

For the majority of people, naltrexone stays in body systems and can be detected by hair test for up to 90 days.

How long does naltrexone stay in your saliva?

For the majority of people, naltrexone stays in body systems and can be detected by saliva test for up to 24 hours.

How long does naltrexone stay in your urine?

For the majority of people, naltrexone stays in body systems and can be detected by urine test from 4 to 6 hours.

How long does naltrexone stay in your blood?

For the majority of people, naltrexone stays in body systems and can be detected by blood test for up to 24 hours.

The provided estimates are averaged and can vary upwards or downwards, depending upon many factors:

  • How long you have been taking naltrexone;
  • Whether you have excessive weight;
  • Whether you have had physical activity before test;
  • Dehydration of your body;
  • Metabolism, height, age, sex and other factors.