NTX

Medical abbreviation · Drug

NTX
Stands forNaltrexone
CategoriesMedical

NTX stands for Naltrexone, a drug abbreviation.

Opioid receptor antagonist used to treat alcohol use disorder and opioid use disorder, taken as a 50 mg daily tablet or a monthly 380 mg intramuscular injection (Vivitrol, often written XR-NTX).

Example: Start NTX 50 mg PO daily for alcohol use disorder; LFTs normal.

Usage notes

Patients must be free of opioids for about 7 to 10 days before starting, or naltrexone will trigger withdrawal. It reduces heavy drinking by blunting the reward of alcohol. Unlike naloxone, which reverses overdoses within minutes, naltrexone is long-acting and used for prevention, and after stopping it people may be more sensitive to opioids.

More drug abbreviations

  • NAC – N-acetylcysteine
  • NE – Norepinephrine
  • Neo – Neo-Synephrine (phenylephrine)
  • nitro – Nitroglycerin
  • NPH – Neutral protamine Hagedorn (isophane insulin)
  • NTG – Nitroglycerin
  • NVP – Nevirapine
  • ORS – Oral rehydration solution
  • OXC – Oxcarbazepine
  • PB – Phenobarbital
  • PCC – Prothrombin complex concentrate
  • PCM – Paracetamol

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Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.