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   What is the difference between Viagra and sildenafil?

   • Sildenafil citrate (Viagra) is a medication used to treat erectile dysfunction (ED), or impotence, in men. Viagra treats erectile dysfunction, the inability to achieve and/or maintain an erection of the penis that is adequate for sexual intercourse.

   Sildenafil Citrate | Encyclopedia.com

   www.encyclopedia.com/medicine/drugs/pharmacology/sildenafil-citrate

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   When did Viagra become a generic drug?

   • This would be marketed as Viagra. This patent was published in 2002 and expired in 2019. Teva sued to have the latter patent invalidated, but Pfizer prevailed in an August 2011 federal district court case. An agreement with Pfizer allowed Teva to begin to provide the generic drug in December 2017.

   Sildenafil - Wikipedia

   en.wikipedia.org/wiki/Sildenafil

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   What is sildenafil citrate used for?

   • The main function of the drug is to inhibit the enzyme that degrades cGMP, a regulator of blood flow to the penis. The medical uses for Sildenafil Citrate are sexual dysfunction, pulmonary hypertension, and altitude sickness. In 1998, the drug Viagra was introduce as an effective way to treat male erectile dysfunction (MED).

   Structural Biochemistry/Viagra (Sildenafil Citrate) - Wikibooks

   en.wikibooks.org/wiki/Structural_Biochemistry/Viagra_(Sildenafil_Citrate)

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   How does Viagra work?

   • Viagra works by inhibiting an enzyme in the body known as PDE5, short for phosphodiesterase type 5. This enzyme breaks down crucial chemicals involved in the erection process. When Viagra blocks PDE5, these chemicals remain unaltered, keeping the tissues in the penis relaxed and capable of holding an increased volume of blood.

   Viagra: What It Is, Uses, Side Effects & Drug Interactions

   www.healthday.com/a-to-z-health/men-health/viagra-647532.html

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2. en.wikipedia.org › wiki › SildenafilSildenafil - Wikipedia

   en.wikipedia.org › wiki › Sildenafil

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   Sildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. It is unclear if it is effective for treating sexual dysfunction in females.

   • Pulmonary Hypertension

     Pulmonary hypertension (PH or PHTN) is a condition of...

   • Cyclic Guanosine Monophosphate

     Cyclic guanosine monophosphate (cGMP) is a cyclic nucleotide...

   • cGMP-specific Phosphodiesterase Type 5

     242202 Ensembl ENSG00000138735 ENSMUSG00000053965 UniProt...

   • Erectile Dysfunction Drugs

     Language links are at the top of the page across from the...

   • Refractory Period

     In human sexuality, the refractory period is usually the...

   • Sublingual

     Sublingual (abbreviated SL), from the Latin for "under the...

3. www.wikiwand.com › en › SildenafilSildenafil - Wikiwand

   www.wikiwand.com › en › Sildenafil

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   SHOW ALL QUESTIONS. Sildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon.

4. simple.wikipedia.org › wiki › SildenafilSildenafil - Simple English Wikipedia, the free encyclopedia

   simple.wikipedia.org › wiki › Sildenafil

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   Viagra structure. ball & stick model. Sildenafil is an aphrodisiac. It is a medication that is also called Viagra, Revatio and (in the Indian subcontinent) Caverta. Sildenafil makes the blood vessels become wider. This lowers the blood pressure. Sildenafil mostly works in the penis and in the lungs. This medicine increases blood flow to the penis.

5. www.encyclopedia.com › sildenafil-citrateSildenafil Citrate | Encyclopedia.com

   www.encyclopedia.com › sildenafil-citrate

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   May 23, 2018 · Sildenafil citrate (Viagra) is a medication used to treat erectile dysfunction (ED), or impotence, in men. Purpose. Labeled use. Viagra treats erectile dysfunction, the inability to achieve and/or maintain an erection of the penis that is adequate for sexual intercourse.

6. www.ncbi.nlm.nih.gov › pmc › articlesVIAGRA : IS IT A WONDER DRUG ? - PMC - National Center for ...

   www.ncbi.nlm.nih.gov › pmc › articles

   Jul 21, 2011 · Abstract. Male erectile dysfunction is common and frustrating after the age of forty years. Erectile dysfunction is a cause of misery, relationship difficulties, and significantly reduced quality of life. Sildenafil citrate (Viagra) has shown promising results in recently published clinical trials.

   • Author: Saini Js, Garg Mk
   • DOI: 10.1016/S0377-1237(01)80090-3

   • Publish Year: 2001
   • Published: 2001/01

7. www.healthday.com › men-health › viagra-647532Viagra: What It Is, Uses, Side Effects & Drug Interactions

   www.healthday.com › men-health › viagra-647532

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   Sep 13, 2023 · Viagra (sildenafil) is a prescription-only medication used to help treat erectile dysfunction (ED) in men. Learn more about what Viagra is, including what it’s used for, how it works, side effects, potential drug interactions and the difference between Cialis vs Viagra.

8. en.wikibooks.org › Viagra_(Sildenafil_Citrate)Structural Biochemistry/Viagra (Sildenafil Citrate) - Wikibooks

   en.wikibooks.org › Viagra_(Sildenafil_Citrate)

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   Jul 11, 2017 · Sildenafil Citrate, more commonly known as Viagra, is a drug that is used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). The main function of the drug is to inhibit the enzyme that degrades cGMP, a regulator of blood flow to the penis. The medical uses for Sildenafil Citrate are sexual dysfunction, pulmonary ...