Editing Sildenafil (section)

=== Counterfeits ===
{{further|Counterfeit medications}}
Counterfeit Viagra, despite generally being cheaper,<ref name="record_2015">{{cite web |date=12 May 2016 |title=Record amount of counterfeit Viagra seized |url=https://www.bbc.com/news/health-36266826 |url-status=live |archive-url=https://web.archive.org/web/20161119084035/http://www.bbc.com/news/health-36266826 |archive-date=19 November 2016 |access-date=26 December 2016 |website=www.bbc.com}}</ref> can contain harmful substances or substances that affect how Viagra works, such as blue printer ink, [[amphetamine]]s, [[metronidazole]], [[boric acid]], and [[rat poison]].<ref name="accessrx_2">{{cite news |date=22 May 2012 |title=Counterfeit Viagra, Cialis, Levitra: The Ultimate Guide |url=https://www.accessrx.com/blog/erectile-dysfunction/counterfeit-viagra-cialis-levitra-ultimate-guide/ |url-status=live |archive-url=https://web.archive.org/web/20170110162756/https://www.accessrx.com/blog/erectile-dysfunction/counterfeit-viagra-cialis-levitra-ultimate-guide/ |archive-date=10 January 2017 |access-date=10 January 2017 |work=AccessRx |vauthors=Amerman D}}</ref>

Viagra is one of the world's most counterfeited medicines.<ref>{{cite news |date=20 August 2013 |title=Cracking Down on Counterfeit Drugs — NOVA Next {{!}} PBS |url=https://www.pbs.org/wgbh/nova/next/body/uncovering-counterfeit-medicines/ |url-status=live |archive-url=https://web.archive.org/web/20170110163116/http://www.pbs.org/wgbh/nova/next/body/uncovering-counterfeit-medicines/ |archive-date=10 January 2017 |access-date=10 January 2017 |publisher=PBS NOVA Next |vauthors=Moran B}}</ref><ref>{{cite news |date=31 August 2015 |title=Online pharmacies suspected of counterfeit drug sales |url=http://www.cnn.com/2015/08/31/health/counterfeit-medications/ |url-status=live |archive-url=https://web.archive.org/web/20170110162602/http://www.cnn.com/2015/08/31/health/counterfeit-medications/ |archive-date=10 January 2017 |access-date=10 January 2017 |publisher=CNN |vauthors=Somra G}}</ref> According to a 2012 Pfizer study, around 80% of sites claiming to sell Viagra were selling counterfeits.<ref name="accessrx_2" />

An October 2023 release stated that erectile dysfunction medicines were the most seized drugs by the [[Interpol]]<ref>{{cite web |title=Erectile Dysfunction Medication the Most Seized Drug During Global Crackdown, Interpol Says |url=https://www.forbes.com/sites/britneynguyen/2023/10/31/erectile-dysfunction-medication-the-most-seized-drug-during-global-crackdown-interpol-says/ |website=[[Forbes]]}}</ref> accounting for 22% of seizures.<ref>{{cite web |title=Global illicit medicines targeted by INTERPOL operation |url=https://www.interpol.int/News-and-Events/News/2023/Global-illicit-medicines-targeted-by-INTERPOL-operation |url-status=live |archive-url=https://web.archive.org/web/20231210191359/https://www.interpol.int/News-and-Events/News/2023/Global-illicit-medicines-targeted-by-INTERPOL-operation |archive-date=10 December 2023 |access-date=10 December 2023}}</ref> International networks may be active.<ref>{{cite web |date=19 April 2023 |title=Israeli-made AI exposes international fake Viagra network |url=https://www.jpost.com/business-and-innovation/article-739678 |url-status=live |archive-url=https://web.archive.org/web/20231210191358/https://www.jpost.com/business-and-innovation/article-739678 |archive-date=10 December 2023 |access-date=10 December 2023}}</ref><ref>{{cite web |title=Counterfeit Viagra Pills, Footwear, Belts, Car Emblems and Headphones Worth over $32 Million Seized at the LA/Long Beach Seaport &#124; U.S. Customs and Border Protection |url=https://www.cbp.gov/newsroom/local-media-release/counterfeit-viagra-pills-footwear-belts-car-emblems-and-headphones |url-status=live |archive-url=https://web.archive.org/web/20231210191528/https://www.cbp.gov/newsroom/local-media-release/counterfeit-viagra-pills-footwear-belts-car-emblems-and-headphones |archive-date=10 December 2023 |access-date=10 December 2023}}</ref>