Sildenafil vs Sitagliptin Phosphate
## Sildenafil vs Sitagliptin Phosphate: Overview
This comparison examines the pharmacological differences between **Sildenafil** and **Sitagliptin Phosphate**.
## Mechanism of Action
**Sildenafil**: Selective PDE5 inhibitor increasing cGMP.
## Pharmacokinetics
**Half-life**: Sildenafil — 4 hours; Sitagliptin Phosphate — N/A.
## Chemical Properties
**Molecular Formula**: Sildenafil — C22H30N6O4S; Sitagliptin Phosphate — N/A.
**Molecular Weight**: Sildenafil — 474.5800 g/mol; Sitagliptin Phosphate — N/A.
**Type**: Sildenafil — Small molecule; Sitagliptin Phosphate — Small molecule.