Dryness of mouth caused by antipsychotic drug is caused by blockade of: a. Muscarinic ACh receptors b. GABA receptors
Understand the Problem
The question is asking about the physiological mechanism behind a specific side effect (dryness of mouth) caused by antipsychotic drugs, specifically which type of receptors are involved in this effect.
Answer
Muscarinic ACh receptors
The final answer is Muscarinic ACh receptors.
Answer for screen readers
The final answer is Muscarinic ACh receptors.
More Information
Dry mouth is a common side effect of antipsychotic drugs due to their anticholinergic activity, which blocks muscarinic acetylcholine receptors, reducing saliva production.
Tips
A common mistake is assuming GABA receptors are responsible, but they do not influence salivation like muscarinic receptors.
Sources
- Anticholinergic medication: Related dry mouth and effects on the ... - pmc.ncbi.nlm.nih.gov
- Muscarinic Acetylcholine Receptor Antagonist - ScienceDirect.com - sciencedirect.com
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