Assertion: viagra's use | /r/HasProperty | contraindicated
Facets:
value: in patients
type: LOCATION
Source sentences:
text: Use of sildenafil is contraindicated in patients currently taking nitrate preparations.
text: Concomitant use of sildenafil with nitrates in any form is contraindicated [see Contraindications (4)].
text: Concomitant use of Revatio with nitrates in any form is contraindicated [see Contraindications (4)].
text: Therefore, the use of CIALIS in patients taking any form of nitrates is contraindicated [see CONTRAINDICATIONS].
text: The use of prostaglandin E1 is contraindicated in patients with a predisposition to priapism (e.g., those with sickle cell anemia), as well as in those with an anatomical deformity of the penis or a penile implant.
text: The safety of sildenafil has not been studied in the following sub-groups of patients and its use is therefore contraindicated: severe hepatic impairment, hypotension (blood pressure < 90/50 mmHg), recent history of stroke or myocardial infarction and known hereditary degenerative retinal disorders such as retinitis pigmentosa (a minority of these patients have genetic disorders of retinal phosphodiesterases).