SILDENAFIL CITRATE (sildenafil citrate) by Viatris (2) is pde-5 in the smooth muscle of the pulmonary vasculature, where pde-5 is responsible for degradation of cgmp. Approved for pulmonary arterial hypertension (pah) (world health organization [who] group i) in adults to improve exercise ability, delay clinical worsening. First approved in 2022.
Drug data last refreshed 18h ago
PDE-5 in the smooth muscle of the pulmonary vasculature, where PDE-5 is responsible for degradation of cGMP. Sildenafil, therefore, increases cGMP within pulmonary vascular smooth muscle cells resulting in relaxation. In patients with PAH, this can lead to vasodilation of the pulmonary vascular bed…
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