Viagra, or sildenafil citrate, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, facilitating an erection in response to sexual stimulation. This effect stems from its inhibition of a specific enzyme, PDE5.
Dosage and Administration
Viagra comes in various dosages; your doctor will determine the appropriate strength based on your individual needs and health history. It’s typically taken orally, about one hour before sexual activity. The medication’s effects usually last for four to five hours. Follow your physician’s instructions carefully regarding frequency of use and potential interactions with other medications.
Potential Side Effects
Common side effects include headache, facial flushing, nasal congestion, and visual disturbances. Less frequent side effects exist. Discuss any concerns or persistent side effects with your doctor immediately. This information doesn’t substitute professional medical advice.
Viagra and Other Conditions
Beyond ED, research explores Viagra’s potential in treating other conditions like pulmonary hypertension. However, its use for these applications requires specific medical assessment and prescription.
Important Precautions
Consult your doctor before using Viagra, particularly if you have heart problems, high or low blood pressure, or take nitrates. Avoid grapefruit juice, as it can affect Viagra’s metabolism. Always seek professional medical guidance for appropriate diagnosis and treatment.


