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MRP: Rs. 553.87 for 1 strip(s) (10 tablets each)
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Composition for NALCON

Naltrexone(50 mg)

food interaction for NALCON

alcohol interaction for NALCON

pregnancy interaction for NALCON

lactation interaction for NALCON

It can be taken with or without food, but it is better to take Nalcon 50mg tablet at a fixed time.
Nalcon 50mg tablet may cause excessive drowsiness and calmness with alcohol.
Nalcon 50mg tablet may be unsafe to use during pregnancy.
Either animal studies have shown adverse effect on fetus and there are no human studies or studies in human and animals are not available. It should be given only if potential benefits justifies risk to the fetus. Please consult your doctor.
Unknown. Human and animal studies are not available. Please consult your doctor.


Naltrexone(50 mg)


Nalcon 50mg tablet is used along with counseling and social support in the treatment of alcohol addiction and for the management of opioid addiction. Nalcon 50mg tablet is used to help avoid the usage of drugs and alcohol, but it will not prevent/ relieve the withdrawal symptoms that may occur after stopping the use of drugs and alcohol. It is thus used as a maintenance therapy for abstinence from alcohol or opioids during addiction withdrawal.

How it works

Nalcon 50mg tablet belongs to a class of medicines called opioid antagonists. Nalcon 50mg tablet decreases the craving for alcohol or opioid by acting on specific opioid receptors in the brain. It reduces the feeling of euphoria previously experienced after taking opioids or large amounts of alcohol.

Common side effects

Vomiting, Nausea, Nervousness, Acne-like rash, Anxiety, Constipation, Diarrhoea, Drowsiness, Dizziness, Headache, Impotence, Insomnia, Irritation, Loss of appetite, Muscle pain, Joint pain, Stomach pain, Stomach cramp, Tachycardia, Teary eyes, Weakness


2 Substitutes
Sorted By
    (10 tablets in strip)
    Intas Pharmaceuticals Ltd
    Rs. 70.30/tablet
    Rs. 703
    pay 27% more per tablet
    (10 tablets in strip)
    Sun Pharma Laboratories Ltd
    Rs. 65/tablet
    Rs. 650
    pay 17% more per tablet

Expert advice for NALCON

  • Do not consume opioid (opioid free) for a minimum of 7-10 days before starting naltrexone therapy. Your doctor may perform naloxone challenge test (a diagnosis for chronic opiate abuse) before starting the treatment with naltrexone.
  • Do not consume opioid derivatives while on naltrexone treatment.
  • Naltrexone is not recommended in children.
  • Inform your doctor if you are taking or have recently taken any medications for diarrhea, cough, pain, or disulfiram and thioridazine.
  • Do not drive or operate machine as you may feel dizzy or tired.
  • Tell your doctor if you are or planning to become pregnant or are breastfeeding.

Frequently asked questions for NALCON


Q. Can you take naltrexone forever?
No, naltrexone must be taken as long as prescribed by your doctor.
Q. Can you take naltrexone with Xanax (alprazolam)?
Caution has to be exercised when naltrexone is taken with alprazolam and its derivatives.
Q. Can you take naltrexone with suboxone (naloxone and buprenorphine)/ Subtex (buprenorphine)?
No, both suboxone and subtext are used in opioid withdrawal. Hence they should not be taken with naltrexone, as an additive effect leading to side effects may occur. Always follow the instructions of the doctor.
Q. Does naltrexone make you high/ sleepy?
No, naltrexone does not make you high but, may rarely make you sleepy.
Q. Does naltrexone help with pain/ for weight loss?
Naltrexone has no known effects on pain and is not indicated for weight loss.
Q. Does naltrexone help with opiate cravings?
Yes, naltrexone helps reduce opiate cravings.
Q. Does naltrexone test positive for opiates?
No, naltrexone does not test positive for opiates.


Content on this page was last updated on 30 December, 2015, by Dr. Varun Gupta (MD Pharmacology)