Viagra

American

[vahy-ag-ruh] / vaɪˈæg rə /

Pharmacology, Trademark.

a brand of sildenafil citrate, used to treat impotence.

Viagra British

/ viː-, vaɪˈæɡrə /

noun

a drug, sildenafil, that allows increased blood flow into the penis; used to treat erectile dysfunction in men

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Viagra

Sildenafil, the active ingredient in Viagra, may offer new hope for people living with Leigh syndrome, a rare and severe childhood disorder.

From Science Daily ● Mar. 31, 2026

Two large studies based on health-insurance databases found that those who took Viagra had a lower risk of developing Alzheimer’s.

From MarketWatch ● Mar. 7, 2026

The Covid vaccine gave Pfizer a shot in the arm in 2021 and 2022 after the patents on its blockbuster drugs Lyrica and Viagra expired.

From The Wall Street Journal ● Oct. 5, 2025

Recently the band was tapped to headline a show at Golden Gate Park accompanied by the Deftones, the Mars Volta, Viagra Boys and Vows on August 17.

From Los Angeles Times ● May 9, 2024

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023