Generic Viagra tablets contain Sildenafil, an active ingredient used to treat erectile dysfunction (ED) in men. Sildenafil belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors, which work by relaxing the muscles and improving blood flow to the penis during sexual stimulation. This helps men achieve and maintain an erection suitable for sexual activity. How It Works: Sildenafil works by inhibiting the action of the enzyme PDE5, which is responsible for the breakdown of cGMP (cyclic guanosine monophosphate). When sexual arousal occurs, nitric oxide is released, and cGMP is produced to help relax the smooth muscles of the penis, allowing blood to flow in and cause an erection. By inhibiting PDE5, Sildenafil helps maintain higher levels of cGMP, leading to improved erectile function. Uses: Erectile Dysfunction (ED): Generic Viagra is commonly prescribed to men who have difficulty achieving or maintaining an erection. Pulmonary Arterial Hypertension (PAH): Sildenafil is also used under the brand name Revatio to treat high blood pressure in the lungs. Dosage: The typical starting dose for erectile dysfunction is 50 mg, taken approximately 30 minutes to 1 hour before sexual activity. Depending on the effectiveness and side effects, the dose can be adjusted between 25 mg and 100 mg. It should not be taken more than once a day. Precautions: Sildenafil should be used with caution in patients with cardiovascular issues, as it can affect blood pressure and heart function. It should not be combined with nitrate medications (often used for chest pain), as this can lead to a dangerous drop in blood pressure. Consult a healthcare provider before using Sildenafil if you have a history of stroke, heart disease, liver or kidney problems, or any other medical conditions.

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