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What forms of Naltrexone are avaliable in Europe?


Naltrexone is produced in several pharmacological forms.

Firsty, there is an oral Naltrexone in the form of pills or tablets.

In different countries they’ve been called differently: for example in some countries it’s  Revia, or Naltrexone hydrochloride, in other countries Antaxon, Nalorex, Trixan, etc.

A standard dosage of Naltrexone pill is 50mg, which is more than enough for 24h.

Besides, there is Naltrexone depot, so called implants or pellets, which are placed in the course of small surgical intervention by a special syringe.

The inventor of one type of pellets is an Australian doctor George O Niel who continues to refine his conception of Naltrexone blockers based on depot polymers. These implants are gradually dissolving in the body releasing the necessary dosages of Naltrexone.

Americans apply salts of fatty acids of Naltrexone. In most of the cases, Naltrexone binds to magnesium stearate.

Liquid forms of Naltrexone came out recently – Naltrexone injection. It is Naltrexone palmitate or Naltrexone in cotton oil. Intramuscular injection of Naltrexone cure provide blockade of opiate receptors for 1 month.

Scientist are trying to develop longer forms of Naltrexone depot, for example, Naltrexone implants for 24 months, which means that medication placed once will be able to provide reliable relapse protection for 2 years.

If you have any questions fell free to contact us at or +44 20 3289 8289

 Videos on Opioid Detox and Naltrexone Implants

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