## Core Concept
Strychnine poisoning acts by blocking the inhibitory neurotransmitter **glycine** in the spinal cord, leading to muscle convulsions. The management involves supportive care and specific antidotes to counteract these effects.

## Why the Correct Answer is Right
The correct answer, **Diazepam**, is a benzodiazepine that enhances the effect of **GABA (gamma-aminobutyric acid)**, an inhibitory neurotransmitter in the brain. By doing so, it can help control the muscle convulsions caused by strychnine poisoning. Diazepam is used as part of the treatment to manage symptoms.

## Why Each Wrong Option is Incorrect
- **Option A: Naloxone** is incorrect because it is an antidote for opioid poisoning, acting by competitively inhibiting opioid receptors.
- **Option B: Atropine** is incorrect as it is primarily used to treat organophosphate poisoning and as an antidote for muscarinic effects; it does not counteract the effects of strychnine.
- **Option C: Prussian Blue** is incorrect because it is used in the treatment of **thallium** and **cesium** poisoning, not strychnine.

## Clinical Pearl / High-Yield Fact
A key point to remember is that treatment for strychnine poisoning focuses on supportive care, including control of muscle convulsions with **benzodiazepines** like Diazepam, and management of symptoms until the toxin is eliminated.

## Correct Answer: D. Diazepam