Drug used for sympathectomy in experimental animals is ?
**Core Concept**
The question tests the understanding of **chemical sympathectomy**, a procedure used in experimental animals to study the sympathetic nervous system. This involves the use of specific drugs to selectively destroy sympathetic nerve fibers. **Guantanamo** is not relevant here, but **6-hydroxydopamine** is a key term.
**Why the Correct Answer is Right**
6-hydroxydopamine is a neurotoxin that selectively destroys **noradrenergic neurons**, making it useful for chemical sympathectomy in experimental animals. It works by being taken up by **norepinephrine transporters** and then causing oxidative damage to the neurons. This leads to the degeneration of sympathetic nerve fibers.
**Why Each Wrong Option is Incorrect**
**Option A:** Is not relevant to chemical sympathectomy.
**Option B:** Not typically used for this purpose.
**Option D:** Not the correct drug for sympathectomy.
**Clinical Pearl / High-Yield Fact**
Remember that **6-hydroxydopamine** is used in research to study the sympathetic nervous system by inducing chemical sympathectomy. This has implications for understanding **hypertension** and other conditions involving the sympathetic nervous system.
**Correct Answer:** D. 6-hydroxydopamine