Assertion: viagra's sildenafil | /r/HasProperty | medication
Facets:
Source sentences:
text: Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension.
text: Sildenafil is a medication used to treat erectile dysfunction and pulmonary artery hypertension, and acts by blocking or inhibiting phosphodiesterase-5, an enzyme which promotes cyclic GMP (cGMP) breakdown in smooth muscle cells, found specifically in the corpus cavernosum of the penis, and in the arterial wall smooth muscle cells of the lungs.
text: Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension.