The Main Active Ingredient: Sildenafil Citrate

The primary active ingredient in Viagra, as well as in Viagra Connect and Sildenafil, is sildenafil citrate. Sildenafil citrate is a chemical compound that functions to temporarily enhance the flow of blood in specific areas of the body. This ingredient is responsible for the drug's ability to combat erectile dysfunction by increasing blood flow to the penis, which enables an erection when the user is sexually aroused.

How Sildenafil Citrate Works

Sildenafil citrate operates as a phosphodiesterase type 5 inhibitor (PDE5i). The inhibitor function of this compound prevents the action of the enzyme PDE5, which hampers the relaxation of smooth muscle tissue. When PDE5 is inhibited, increased blood flow can lead to an erection during sexual stimulation. In addition to promoting an erection, Viagra also assists in maintaining the erection post-ejaculation and decreases the refractory period before a subsequent erection can be achieved.

The Role of Sildenafil Citrate in Viagra and Viagra Connect

Viagra Connect, Viagra, and Sildenafil are all medications that contain sildenafil citrate as their active ingredient. While Viagra is a brand name medication developed and marketed by Pfizer, Sildenafil, often referred to as "generic Viagra," is the generic name for the active ingredient in Viagra. Both these medicines perform the same function, making them effective treatments for erectile dysfunction.

Sildenafil as the Active Ingredient in Revatio

Sildenafil citrate is not solely used in drugs intended to treat erectile dysfunction. It is also the active ingredient in Revatio, a medication used for a different purpose. Revatio is prescribed to treat adults suffering from pulmonary arterial hypertension, demonstrating the versatility of this active ingredient.

Sildenafil Citrate's Effect on Pulmonary Arterial Hypertension

When used in Revatio, sildenafil citrate helps to improve the ability to exercise in adults living with pulmonary arterial hypertension. This application of the active ingredient illustrates its capacity to regulate blood flow in different areas of the body, thus assisting in the management of this specific cardiovascular condition.

Understanding the Importance of Sildenafil Citrate in Viagra

In conclusion, sildenafil citrate is the critical active ingredient in Viagra, Viagra Connect, and Sildenafil.

This compound is a phosphodiesterase type 5 inhibitor that works by increasing blood flow to the penis, thereby facilitating an erection.The same active ingredient is also found in Revatio, where it aids adults with pulmonary arterial hypertension.It is the function of sildenafil citrate that allows these medications to successfully manage erectile dysfunction and enhance the quality of life for those with pulmonary arterial hypertension.This powerful active ingredient is a testament to the significant advancements in modern medical treatments.


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More Links

 Autism Society of America


 Autism Society of America - Greater Georgia Chapter


Here is a "Java Link" to an autism chat room - it will take you there through your browser (or should ...)


 Link to another autism chat room on the internet


 Link to an AUTISTICS ONLY chat room on the internet.  Do NOT use this link for parent talk or asking about "therapies.  You will be removed."


What happens to all those children with autism?  They turn into adults.  Meet dozens of them here.


Neurodiversity.com -- honoring the variety of human wiring

You can order this pin from  http://www.autistics.us

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Updated June 16, 2005