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The use of viagra nasal congestion is contraindicated in patients taking nitrates (often prescribed for chest pain), as the combination can cause a dangerous decrease in blood pressure. Other side effects may include headaches, flushing, indigestion, lisinopril 5 mg tablet cost nasal congestion, dizziness, and visual disturbances. These side effects are generally mild and temporary but can be severe in rare cases. This leads to prolonged blood flow and, consequently, a sustained erection. PDE5 breaks down cGMP, thus regulating blood flow and causing the erection to subside.
Viagra works by inhibiting the action of PDE5, thereby increasing the levels of cGMP in the corpus cavernosum. It is important to note that sexual stimulation is required for Viagra to be effective, as it does not initiate an erection but rather makes it easier to develop and maintain one when there is arousal. It has helped to reduce the stigma associated with ED, encouraged men to seek medical advice for their sexual health issues, and spurred the development of other ED treatments and sexual health products.
The cultural impact of Viagra has been significant, changing the landscape of sexual health and relationships for many. However, during clinical trials, it was found to have a profound effect on erectile function, which led to its approval by the FDA in 1998 for the treatment of ED. Developed and marketed by Pfizer, Viagra was initially intended as a treatment for hypertension and angina pectoris. Viagra, known scientifically as sildenafil citrate, is a medication widely recognized for its role in treating erectile dysfunction (ED).
The active ingredient in Viagra, sildenafil citrate, belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Nitric oxide activates an enzyme that produces cyclic guanosine monophosphate (cGMP), a substance that relaxes smooth muscle cells, allowing blood to flow freely and cause an erection. PDE5 is an enzyme found in various tissues, including the smooth muscle cells of blood vessels and the corpus cavernosum, a sponge-like area around the penis that fills with blood during an erection.
Under normal circumstances, after sexual stimulation, the body releases nitric oxide into the corpus cavernosum. By relaxing blood vessels, sildenafil helps reduce pulmonary blood pressure and improves symptoms of PAH. In PAH, the blood vessels in the lungs are narrowed, blocked, or destroyed, leading to difficulty in oxygenating blood. It has shown potential benefits in treating pulmonary arterial hypertension (PAH), a rare but severe form of high blood pressure in the lungs.
Beyond its application in treating ED, Viagra has also been explored for other medical conditions. It brought the topic of erectile dysfunction out of the shadows and into open discussion. The introduction of Viagra also had significant social and cultural impacts. Moreover, it has been a catalyst for the pharmaceutical industry to invest in further research into sexual health, leading to the development of other similar medications such as Cialis (tadalafil) and Levitra (vardenafil).
Erectile dysfunction is a condition where a man is unable to achieve or maintain an erection adequate for satisfactory sexual performance.
Viagra works by inhibiting the action of PDE5, thereby increasing the levels of cGMP in the corpus cavernosum. It is important to note that sexual stimulation is required for Viagra to be effective, as it does not initiate an erection but rather makes it easier to develop and maintain one when there is arousal. It has helped to reduce the stigma associated with ED, encouraged men to seek medical advice for their sexual health issues, and spurred the development of other ED treatments and sexual health products.
The cultural impact of Viagra has been significant, changing the landscape of sexual health and relationships for many. However, during clinical trials, it was found to have a profound effect on erectile function, which led to its approval by the FDA in 1998 for the treatment of ED. Developed and marketed by Pfizer, Viagra was initially intended as a treatment for hypertension and angina pectoris. Viagra, known scientifically as sildenafil citrate, is a medication widely recognized for its role in treating erectile dysfunction (ED).
The active ingredient in Viagra, sildenafil citrate, belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Nitric oxide activates an enzyme that produces cyclic guanosine monophosphate (cGMP), a substance that relaxes smooth muscle cells, allowing blood to flow freely and cause an erection. PDE5 is an enzyme found in various tissues, including the smooth muscle cells of blood vessels and the corpus cavernosum, a sponge-like area around the penis that fills with blood during an erection.
Under normal circumstances, after sexual stimulation, the body releases nitric oxide into the corpus cavernosum. By relaxing blood vessels, sildenafil helps reduce pulmonary blood pressure and improves symptoms of PAH. In PAH, the blood vessels in the lungs are narrowed, blocked, or destroyed, leading to difficulty in oxygenating blood. It has shown potential benefits in treating pulmonary arterial hypertension (PAH), a rare but severe form of high blood pressure in the lungs.
Beyond its application in treating ED, Viagra has also been explored for other medical conditions. It brought the topic of erectile dysfunction out of the shadows and into open discussion. The introduction of Viagra also had significant social and cultural impacts. Moreover, it has been a catalyst for the pharmaceutical industry to invest in further research into sexual health, leading to the development of other similar medications such as Cialis (tadalafil) and Levitra (vardenafil).
Erectile dysfunction is a condition where a man is unable to achieve or maintain an erection adequate for satisfactory sexual performance.
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