1) Alternative to cialis 2) Anit-impotence drug 3) Cialis alternative 4) Cialis competitor 5) Cialis rival 6) Common spam email product 7) Drug in the news 8) It may keep you up at night 9) It will keep you up 10) Levitra competitor 11) Marketing sensation of 1998 12) Medical breakthrough of 1998 13) Pfizer drug
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https://www.crosswordclues.com/clue/viagra
1) Sildenafil
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https://www.crosswordclues.com/clue/viagra
trade name of the first oral drug for male impotence, introduced by the pharmaceutical company Pfizer, Inc., in 1998. Also known by the chemical name ... [5 related articles]
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http://www.britannica.com/eb/a-z/v/19
A drug used to treat erectile dysfunction. Viagra relaxes the smooth muscle of the penis to allow increased blood flow and erection. It is a type of phosphodiesterase inhibitor. Also called sildenafil.
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http://www.cancer.gov/dictionary?expand=V
(vi-ag´rә) trademark for a preparation of sildenafil citrate, a treatment for erectile dysfunction.
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http://www.encyclo.co.uk/local/21001
Viagra is the trade name of sildenafil citrate, sold as an anti-impotency drug. It was invented in 1998 by Peter Dunn and Albert Wood, working at the Pfizer company in Sandwich, Kent. They built upon work done in 1991 by other scientists as Pfizer who found that compounds of the pyrazolopyrimidinone class could be used for treating heart complaints...
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http://www.probertencyclopaedia.com/browse/EV.HTM
A well known drug, helps blood flow to the penis.
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https://www.encyclo.co.uk/local/20661
No exact match found.
