Common and Rare Side Effects of Naltrexone Hydrochloride Tablets

Naltrexone Hydrochloride Oral Tablets (Naltrexone Hcl)

Pronunciation: nal-Trex-own hye-droe-Chlore-ide


Naltrexone hydrochloride tablets are used to keep alcoholics away from alcoholic beverages. There are some “common and rare side effects of naltrexone hydrochloride tablets”.

With the help of naltrexone hydrochloride tablets alcohol addiction completely closes. in this treatment it reduces the desire of alcohol to drink.

These naltrexone hydrochloride tablets used for those patients whose are suffering from bad habits. Bad habit means those people who consume narcotics.

Naltrexone hydrochloride is an opioid antagonist. It completely blocks the subjective effects of opioids by competitively binding at opioid receptors. Duration of action is dose related and much longer than that of naloxone.

Side Effects

These medicines are basically used in the guidelines of doctors. The doctor knows to handle his patients under any circumstances. You should not use this drug without the permission of the doctors.

Naltrexone hydrochloride tablet cause some common and rare side effects. Tell your doctor immediately if you have face any of these symptoms.

Common Side Effects

The most common side effects of naltrexone hydrochloride tablets are as follows

  • Nausea
  • Vomiting
  • Headache
  • Anxiety
  • Diarrhoea
  • Constipation
  • Increased thirst
  • Sweating
  • Lachrymation (flow of tears)
  • Chills
  • Dizziness
  • Rash

Rare Side Effects

These are the rare side effects of naltrexone hydrochloride tablets

  • Abdominal pain
  • Insomnia
  • Lethargy
  • Musculoskeletal pain
  • Anorexia
  • Chest pain
  • Irritability
  • Sexual dysfunction
  • Liver function abnormalities
  • Reversible idiopathic thrombocytopenia

These are not the complete list of side effects. If you feel any other health related problems, consult the doctor or pharmacist.


The dosage of naltrexone hydrochloride tablets are based on the medical conditions of the patients.Intially the dosage is starting with 50 mg per day. Gradually, this can be increased from 100 grams to 150 grams according to the medical conditions of the patients.

Opioid Dependence Dosage

Before taking this medicine, patients will have opioid free for 7 to 10 days. Start treatment only in the specialist clinics. The initial dose for opioid should be 25 mg tablets once per day. Then its dose gradually increases to 50 mg per day. Once the patient becomes stable, the total weekly dosage can be divided and 3 alternate days of the week can be given.

Adjunctive Treatment in Chronic Alcoholism

The normal dose is 50 mg once daily.


The patient should first examine the presence of opioid in the body. Give the doctor proper information about his medical conditions and take naltrexone hydrochloride tablets.

For this urinalysis or Naloxone challenge is to be used. Prior to starting neutron therapy, patients need at least 7 to 10 days. Treatment should be started only after the release of the opioid.

Do not take this medicine during pregnancy. This causes some health problems. So consult your doctor before using this drug in pregnancy.

In lactation, this medicine passes through the breast. Therefore, do not give milk to their children without the doctor’s permission.

Before treatment, get the correct information about hepatic impairment or renal impairment. This requires a liver function (LFT) test. It shows the patient’s liver conditions. Then take this naltrexone hydrochloride tablet as guided by the doctors or physicians.

Drug Interactions

Excessive opioid can result in acute opioid addiction. Apart from this, these drugs releases excessive histamine. As a result, there are swelling on the face, itching and erythema.

Concurrent hepatotoxic drugs can increase the risk of liver disease. Do not stop or change the dose without the permission of the doctor or pharmacist.

Additional Informations

Generic Name

Naltrexone Hydrochloride

Brand Names

ReVia, Vivitrol, Nalcon, Naltima, Nodict

Chemical Structure

Chemical Formula


Med Gyani

Med Gyani

My website is all about drug information for professional and consumers. Search my website for drugs, drugs information, drugs Interactions, drug dosage, drugs side effects, drugs precaution, drugs usage, health information, and science information.

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