The primary component of Viagra is Sildenafil Citrate. Sildenafil falls under a category of medications known as phosphodiesterase type 5 inhibitors. Typically, this medication is employed to treat erectile dysfunction (male impotence). Sildenafil Citrate influences the body's response to sexual stimulation. By utilizing a chemical called nitric oxide, it enhances the relaxation of smooth muscle, allowing increased blood flow to the penis, which helps achieve and maintain an erection. Sildenafil Citrate can also be used for the treatment of pulmonary arterial hypertension.

The suggested dosage is 50 mg, taken 30-60 minutes prior to sexual activity. Depending on the side effects, the dosage can be increased to 100 mg or reduced to 25 mg. The maximum recommended dosage is 100 mg. Viagra should not be taken more than once daily. It is advised to avoid high-fat foods, grapefruit, or grapefruit juice.

Before beginning treatment with Sildenafil Citrate, inform your doctor or healthcare advisor about any allergies you may have. Middle-aged individuals may be more susceptible to the medication's side effects. This drug may cause dizziness or vision issues. Limit the consumption of alcoholic beverages. Prior to using this medication, inform your doctor or pharmacist about your medical history, especially if you have sickle cell disease, high or low blood pressure, severe dehydration, a history of painful/prolonged erection (priapism), eye problems, heart issues, kidney disease, liver disease, pulmonary edema, or issues with the shape of the penis (such as angulation, fibrosis/scarring, Peyronie's disease). Sildenafil does not offer protection against sexually transmitted infections like HIV.

Viagra should not be combined with other treatments that cause erection or nitrates, as this may significantly lower your blood pressure, potentially leading to dizziness, fainting, heart attack, or stroke. Women, children, and individuals sensitive to any component of the drug should not use it.

Common side effects include stomach upset, headache, flushing, heartburn, nasal congestion, dizziness or diarrhea, irregular heartbeat, shortness of breath, prolonged (longer than 4 hours), or painful erection. Vision changes such as increased light sensitivity, or blurred vision may also occur. Serious allergic reactions are rare. This is not a comprehensive list of possible side effects. If you observe other, unlisted side effects, you should contact your doctor or pharmacist.

This medication should not be used with nitrates and recreational drugs containing amyl or butyl nitrite, alpha-blocker medications, other medications for impotence, high blood pressure medicines, etc. Grapefruit juice may increase sildenafil levels in the blood. A high-fat meal can reduce the effectiveness of sildenafil. Consult your doctor or pharmacist for further details.

Viagra is intended for use as needed, so missing a dose is unlikely. If you suspect an overdose, seek emergency medical assistance immediately. Overdose symptoms include chest pain, nausea, irregular heartbeat, and feeling lightheaded or fainting.

Store the medication at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do not store the medicine in the bathroom. Keep all medications out of the reach of children and pets.