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