Viagra, or sildenafil citrate, helps achieve and maintain an erection by increasing blood flow to the penis. This happens because it inhibits an enzyme called phosphodiesterase-5 (PDE5), allowing nitric oxide to work more effectively. Nitric oxide relaxes the blood vessels, leading to increased blood flow.
How it works: Sexual stimulation triggers the release of nitric oxide. PDE5 normally breaks down this nitric oxide, limiting blood flow. Viagra blocks PDE5, prolonging nitric oxide’s effects and promoting stronger erections.
Important Note: Viagra is not a hormone replacement therapy; it requires sexual stimulation to be effective. It doesn’t increase libido or sexual desire.
Viagra’s effects usually begin within 30 to 60 minutes and can last for up to four hours. However, individual responses vary. Dosage depends on individual needs and should be determined by a healthcare professional.
Potential side effects: Common side effects include headaches, facial flushing, nasal congestion, and upset stomach. More serious, though rare, side effects include vision changes and hearing loss. Consult a doctor immediately if you experience any concerning side effects.
Who should avoid Viagra? Individuals with certain heart conditions, low blood pressure, uncontrolled high blood pressure, or those taking specific medications (like nitrates) should not use Viagra. Always consult your doctor before starting any new medication, especially if you have pre-existing health conditions.
Seeking professional advice: A doctor can properly diagnose erectile dysfunction, rule out underlying health issues, and determine if Viagra is the right treatment for you. They can also discuss potential risks and side effects and suggest alternative treatments if necessary.
