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dxtxpx
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02/04/04 - 11:12 AM       #1

Pirenzepine selectively inhibits which receptors?

a) M1
b) M2
c) M3
d) M4
e) M5

asmi
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02/04/04 - 11:33 AM       #2

its A

dxtxpx
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02/04/04 - 11:36 AM       #3

yep its tricyclic anticholinergic drug that selectively inhibits M1 (muscarinic receptor subtype present on neurons & gastric parietal cells) so may be useful for duodenal n gastric ulcer. At therapeutic dose, its doesnt cause many SE seen with non-subtype-specific drugs









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