Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A drug, C22H30N6O4S, used to treat sexual dysfunction by increasing the level of cyclic GMP, which increases blood flow to erectile tissues.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun pharmacology A drug, whose citrate is marketed as Viagra; a treatment for erectile dysfunction.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun virility drug (trade name Viagra) used to treat erectile dysfunction in men

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Perhaps alteration of s(ulfon)yl + (pyrimi)dine + ph(en)yl.]

Examples

  • Viagra, aka sildenafil citrate, doesn't mix well with other substances, which means it's difficult to package in a patch.

    CNET News.com

  • Viagra, which has the chemical name sildenafil citrate, was the first drug approved to treat ED in the United States.

    Five Stocks Keeping Company With Viagra -- Seeking Alpha

  • The FDA asserts that this ingredient is an analog of sildenafil, which is the active chemical ingredient of

    NewsInferno

  • The FDA asserts that this ingredient is an analog of sildenafil, which is the active chemical ingredient of

    NewsInferno

  • The FDA asserts that this ingredient is an analog of sildenafil, which is the active chemical ingredient of

    NewsInferno

  • The FDA asserts that this ingredient is an analog of sildenafil, which is the active chemical ingredient of

    NewsInferno

  • For example, Julia Heiman, Ph. D., director of The Kinsey Institute, recently studied what happens to relationships when men start taking erectile-dysfunction drugs such as sildenafil (Viagra).

    What is it with men and sex?

  • D., director of The Kinsey Institute, recently studied what happens to relationships when men start taking erectile-dysfunction drugs such as sildenafil Viagra.

    What is it with men and sex?

  • Tests by the FDA revealed that Zencore Plus contained benzamidenafil, a compound similar to active ingredients in erectile dysfunction medicines, such as sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra).

    Zencore Plus recalled due to life-threatening risk

  • Tests by the FDA revealed that Zencore Plus contained benzamidenafil, a compound similar to active ingredients in erectile dysfunction medicines, such as sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra).

    Zencore Plus recalled due to life-threatening risk

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