Combined AIIMS - 2020 (Jodhpur, Bhopal, Patna, Raipur)
Pharmacology
Easy

What is the antidote of narcotics?

Appeared in: Combined AIIMS - 2020 (Jodhpur, Bhopal, Patna, Raipur)

Explanation

  • Naloxone is a pure opioid antagonist specifically designed to counteract the life-threatening effects of a narcotic (opioid) overdose.
  • Its primary mechanism of action is to competitively bind to opioid receptors in the central nervous system, displacing the narcotic and rapidly reversing its effects, most importantly respiratory depression.
  • Due to its rapid onset and effectiveness, naloxone is the first-line, gold-standard treatment for suspected opioid overdose.

Why Other Options Were Wrong

  • Option B: Flumazenil is the reversal agent for benzodiazepines, not opioids. It has no effect on narcotic overdose.
  • Option C: Digibind is an antibody fragment that specifically binds to digoxin, not opioids.
  • Option D: Atropine is a cholinergic antagonist, which works on a different set of receptors than opioids.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacology: Antidotes for Drug Overdose as background academic context rather than a clinical decision trigger.
  • Nurses must be able to rapidly identify signs of opioid overdose (e.g., pinpoint pupils, respiratory depression, unresponsiveness) and administer naloxone promptly as a life-saving intervention.
  • Patient monitoring after naloxone administration is critical. Naloxone's half-life is often shorter than that of the opioid, meaning the patient can relapse into respiratory depression once the naloxone wears off, requiring repeat doses.
  • What if? If the patient had taken a mixed overdose of narcotics and benzodiazepines, the nurse would anticipate orders for both Naloxone to reverse the opioid effects and potentially Flumazenil to reverse the benzodiazepine effects, though Flumazenil is used cautiously due to seizure risk.
How to Approach the Question
  • This is a direct recall question testing knowledge of pharmacology, specifically antidotes.
  • First, identify the drug class mentioned in the question: 'narcotics,' which are also known as opioids.
  • Recall the specific antagonist for this drug class.
  • Evaluate the options provided. Naloxone is the well-known opioid antagonist.
  • To confirm the answer, mentally verify the indications for the other options: Flumazenil for benzodiazepines, Digibind for digoxin, and Atropine for cholinergic agents/bradycardia.
Concept Tested & Keywords
  • Concept Tested: Pharmacology: Antidotes for Drug Overdose
  • Stem keywords: antidote, narcotics
  • Lead-in keywords: What is
  • Negative lead-in flag: false

Question ID

QlCWRPlyWJNy2kvObJPcZO

Reference Book

E6 Pharmacology Nursing Lilley 11e Part 1 p. 170-172

E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 946-948

E6 Medicine Harrison 22e Part 2 p. 1595-1597

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