Molecule Description

Naloxone is an Opioid antagonist which is used for the treatment of Opioid depen...
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Uses of Naloxone

  • Opioid overdose
  • Reversal of respiratory depression and other nervous system symptoms caused by Opioids
  • Reversal of respiratory depression and other CNs symptoms in newborn babies whose mothers have received Opioids during delivery

Contraindications of Naloxone

When should one not use Naloxone

Allergy to Naloxone.

Side effects of Naloxone

Common side effects of this drug are:

  • Sedation
  • Headache
  • Inability to concentrate
  • Difficulty in breathing
  • Fast heartbeat
  • Shaking
  • Fits
  • Change in blood pressure (low or high)
  • Fever
  • Sweating
  • Runny nose
  • Diarrhea
  • Feeling or being sick
  • Stomach cramps

Precautions and Warnings of Naloxone



Can I take Naloxone during pregnancy?
You should not take this medicine during pregnancy unless considered essential by your doctor.

Breast Feeding

Can I take Naloxone while breastfeeding?
It is not advised to take this medicine during breastfeeding. If considered necessary to be accompanied by a nursing mother, avoid breastfeeding for about 24 hours. Doctor’s advice is mandatory.


Can I drive if I have consumed Naloxone?
It is not recommended to drive or operate heavy machinery when taking this medicine.


Can I consume alcohol with Naloxone?
It is considered unsafe to consume alcohol with this medicine.

Other General Warnings

Talk to your doctor if
  • Naloxone has to be given with caution in patients with Opioid overdose and addiction
  • Close monitoring by a doctor is needed
  • Withdrawal symptoms may occur
  • Tell your doctor if:
  • You experience any discomfort or breathing trouble after taking this medicine
  • You have an allergy to this medicine
  • All your medical conditions and ongoing treatments

Mode of Action of Naloxone

How Does It Work?

This medicine works by blocking or reversing the effects of Opioids, including difficulty in breathing, sedation and low blood pressure.

Interactions of Naloxone

Interactions with other medicines

  • Decreased effects of Opioid Analgesic Naltrexone
  • Buprenorphine
  • MAO inhibitor medicines like Isocarboxazid, Linezolid, etc.
  • Fluoxetine
  • Cardiopulmonary effects may occur with cardiotoxic medicines

Interactions with food items

No interaction with food has been reported yet.

Dosage of Naloxone


This medicine is used to treat Opioid overdose and is mostly administered by a healthcare professional in a calculated dose. Hence, overdose of this medicine is extremely rare. Additionally, it is a f...
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Missed a Dose

If you missed any dose, take it as early as you remember. If it is time for the next dose, skip the missed dose and continue with your regular dosage schedule. Do not take a double dose of medicine to...
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Content Details


Dr. Ritu Budania

MBBS, MD (Pharmacology)

Frequently Asked Questions (FAQs)


Q: What should I discuss with my healthcare expert before taking Naloxone?

A: Give a detailed account of your medical, surgical and allergy history. The doctor should also know about other health supplements like herbal medications, nutritional supplements that you may take before starting this medication.

Q: What precautions should I take while on this medication?

A: The dosage regimen of the medicine should be followed regularly. Any dose miscalculation will have severe effects.
Last Updated on: 05 Oct 2020 | 10:47 PM (IST)

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