Editing Sildenafil (section)

===Contraindications===
[[Contraindications]] include:<ref name="Viagra FDA label">{{cite web | title=Viagra- sildenafil citrate tablet, film coated | website=DailyMed | url=https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=0b0be196-0c62-461c-94f4-9a35339b4501 | access-date=6 October 2020 | archive-date=13 August 2020 | archive-url=https://web.archive.org/web/20200813210523/https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=0b0be196-0c62-461c-94f4-9a35339b4501 | url-status=live }}</ref>
* Concomitant use of nitric oxide donors, organic nitrites and nitrates,<ref name="ACC/AHA">{{cite journal | vauthors = Cheitlin MD, Hutter AM, Brindis RG, Ganz P, Kaul S, Russell RO, Zusman RM | title = ACC/AHA expert consensus document. Use of sildenafil (Viagra) in patients with cardiovascular disease. American College of Cardiology/American Heart Association | journal = Journal of the American College of Cardiology | volume = 33 | issue = 1 | pages = 273–82 | date = January 1999 | pmid = 9935041 | doi = 10.1016/S0735-1097(98)00656-1 | doi-access = free }}</ref> such as:
** [[Nitroglycerin (drug)|nitroglycerin]]
** [[isosorbide mononitrate]]
** [[isosorbide dinitrate]]
** [[sodium nitroprusside]]
** [[alkyl nitrites]] (commonly known as "[[poppers]]")
* Concomitant use of [[soluble guanylyl cyclase]] stimulators, such as [[riociguat]]
* Known hypersensitivity to sildenafil

Sildenafil should not be used if sexual activity is inadvisable due to underlying cardiovascular risk factors.<ref>{{Cite news|url=https://www.rxlist.com/viagra-drug.htm#warnings_precautions|title=Viagra (Sildenafil Citrate): Side Effects, Interactions, Warning, Dosage & Uses|work=RxList|access-date=11 July 2018|archive-date=12 July 2018|archive-url=https://web.archive.org/web/20180712002957/https://www.rxlist.com/viagra-drug.htm#warnings_precautions|url-status=live}}</ref>