Question

Naloxone or nalorphine is used as an antidote intravenously for
A) Heroin
B) Alcohol
C) Librium
D) Morphine

Answer 1

Naloxone is more superior to nalorphine because of its affinity for greater receptors as it is a potent antagonist and it has no receptor activity, it is capable of producing narcotic depression at complete reversal and due to this it is a competitive antagonist.

Complete answer:
Let us study the options to find the correct answer:
Option A: Heroin is a drug which is made from morphine and an opioid drug as it binds rapidly to opioid receptors on cells in the brain when it enters the human body, as it arrives from morphine which is an opioid. Therefore, this is an incorrect answer.
Option B: Alcohol is a drug whose chemical name is ethanol; it is widely used in drinks as an active ingredient. It is made from the fermentation of grains, sugar, fruits, etc. it is not an opioid, therefore, this is an incorrect answer.
Option C: Librium is a type of medicine that is used during the problem of anxiety as it helps people in their unbalanced conditions by affecting the chemicals in the brain. Therefore, this is an incorrect answer.
Option D: Morphine is the drug for which naloxone and nalorphine are used as an antidote because it is a natural opiate derived from the opium of poppy plants and has sedative and narcotic effects. Mainly they are depressants of CNS. Therefore, this is the correct answer.

Thus, the correct answer is option D) Morphine.

Note: Naloxone and nalorphine have many side effects on the human body such as hallucinations, confusions, and anxiety as in the brain they bind to the receptors of opiates and act as antagonists of opiates.