Assertion: viagra's sildenafil | /r/CapableOf | decrease blood flow
Facets:
Source sentences:
text: Sildenafil can decrease blood flow to the optic nerve of the eye, causing sudden vision loss.
text: Sildenafil can decrease blood flow to the optic nerve of the eye, causing sudden vision loss.
text: Sildenafil can decrease blood flow to the optic nerve of the eye, causing sudden vision loss.
text: Sildenafil can decrease blood flow to the optic nerve of the eye, causing sudden vision loss.