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Ancillary & Wellness · Tablet / Capsule
Sildenafil
Sildenafil is a phosphodiesterase type 5 inhibitor. Its principal educational context here is erectile dysfunction, as described in reference Viagra labeling. The same molecule also has separate pulmonary vascular literature, but different diseases, formulations and clinical endpoints cannot be merged into a general claim of improved circulation or sexual desire.
COA · Batch reports
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Mechanism & research
- Mechanism
Nitric oxide released during sexual stimulation activates guanylate cyclase and increases cyclic GMP in corpus cavernosum smooth muscle. PDE5 breaks down cyclic GMP; sildenafil slows that breakdown and amplifies the existing signal. It does not independently create sexual stimulation. PDE6 activity in the retina helps explain transient visual effects, illustrating why enzyme selectivity matters beyond the intended tissue response.
Specifications and prices per listed pack. USD.
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