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Pharmacology Miscellaneous (Pharmacology) 13002cb8

Mechanism of action of sildenafil is

A
Inhibits PDE 2
B
Inhibits PDE 4
C
Inhibits PDE 5
D
Inhibits PDE 3
High-Yield Explanation
Ans. is 'c' i.e., Inhibits PDE 5 * Sildenafil (Viagra) acts to increase cGMP by inhibiting its breakdown by phosphodiesterase isoform 5 (PDE-5).

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