Sildenafil citrate is the active pharmaceutical ingredient in generic Viagra. It works by increasing blood flow to the penis, facilitating an erection.
This increase in blood flow is achieved by inhibiting an enzyme called phosphodiesterase-5 (PDE5). PDE5 normally breaks down cGMP, a molecule responsible for relaxing the muscles in the penis’ blood vessels. By blocking PDE5, sildenafil allows cGMP levels to rise, leading to vasodilation and improved blood flow.
Important Note: Sildenafil requires sexual stimulation to be effective. It doesn’t cause erections spontaneously.
Dosage: The typical starting dose is 50mg. Your doctor will adjust the dosage based on your individual needs and response. Common side effects include headache, facial flushing, and nasal congestion. These usually subside quickly.
Contraindications: Sildenafil is not suitable for everyone. Individuals with certain heart conditions, low blood pressure, or those taking specific medications (like nitrates) should avoid it. Always consult your doctor before using sildenafil.
Interaction with other medications: Sildenafil can interact negatively with some medications. Inform your doctor about all the medications you are currently taking to avoid potential complications.
Seek medical advice: While generic Viagra is widely available, it’s crucial to obtain a prescription from your doctor. They can assess your health, determine the appropriate dosage, and discuss potential risks and benefits.


