Overview: Viagra 100 is a medication manufactured by Para Pharma containing the active substance Sildenafil. It is primarily used to treat erectile dysfunction (ED), a common condition characterized by the inability to achieve or maintain an erection sufficient for satisfactory sexual performance. Viagra 100 belongs to a class of medications called phosphodiesterase type 5 (PDE5) inhibitors, which work by increasing blood flow to the penis during sexual stimulation, thereby facilitating erections.

Active Substance:

• Sildenafil: Viagra 100 contains Sildenafil, which is a potent and selective inhibitor of phosphodiesterase type 5 (PDE5). By inhibiting PDE5, Sildenafil increases the levels of cyclic guanosine monophosphate (cGMP) in the corpus cavernosum of the penis. This leads to relaxation of smooth muscle tissue and dilation of blood vessels, resulting in increased blood flow to the penis and improved erectile function.

Indications: Viagra 100 (Sildenafil) is primarily indicated for:

1. Erectile Dysfunction (ED): It is used to treat erectile dysfunction in adult men, helping them achieve and maintain erections sufficient for satisfactory sexual intercourse. Sildenafil is effective in men with various underlying causes of ED, including vascular, neurogenic, hormonal, and psychogenic factors.

Mechanism of Action: Sildenafil exerts its therapeutic effects by selectively inhibiting the enzyme phosphodiesterase type 5 (PDE5), which is responsible for the degradation of cGMP in the corpus cavernosum of the penis. By blocking PDE5, Sildenafil prolongs the effects of endogenous nitric oxide (NO), a vasodilator released during sexual stimulation. This leads to increased levels of cGMP, smooth muscle relaxation, and vasodilation of penile blood vessels, facilitating penile erection.

Dosage and Administration: The dosage of Viagra 100 (Sildenafil) is determined by the healthcare provider based on individual factors such as the severity of erectile dysfunction, medical history, and response to treatment. It is typically taken orally as needed, approximately 30 minutes to 1 hour before anticipated sexual activity, with or without food. The maximum recommended dose is one tablet (100mg) per day. Viagra 100 should not be taken more frequently than once daily.

Potential Side Effects: Common side effects associated with Sildenafil may include:

• Headache
• Flushing (reddening and warmth of the face)
• Dyspepsia (indigestion)
• Nasal congestion
• Visual disturbances (such as changes in color vision or blurred vision)
• Back pain
• Dizziness or lightheadedness

Precautions:

• Viagra 100 should not be used by individuals allergic to Sildenafil or any other ingredients in the medication.
• It should be used with caution in patients with cardiovascular disease, including those with a history of heart attack, stroke, or arrhythmias.
• Concomitant use of Viagra 100 with nitrates or alpha-blockers may potentiate hypotensive effects and is contraindicated.
• Patients should avoid alcohol consumption while taking Viagra 100, as it may increase the risk of adverse effects such as dizziness or fainting.

In conclusion, Viagra 100 contains Sildenafil, a PDE5 inhibitor used to treat erectile dysfunction in adult men. It works by increasing blood flow to the penis during sexual stimulation, facilitating erections. While generally well-tolerated, Viagra 100 may cause side effects and should be used cautiously under medical supervision.