Citrate the active pharmaceutical ingredient responsible for the medication's effects.
Erectile Dysfunction (ED) in adult men.
Pulmonary Arterial Hypertension (PAH) in adults (specific formulations and dosages).
Hernafil Cet 25mg Tab (Sildenafil) inhibits phosphodiesterase-5 (PDE5), an enzyme that breaks down cyclic guanosine monophosphate (cGMP). Increased cGMP levels relax blood vessels in the penis, leading to improved blood flow and facilitating erection in men with ED. In PAH, it improves blood flow in the lungs.
Store at room temperature, away from moisture and direct sunlight. Keep out of reach of children. Discard any medication past its expiration date.
Dosage varies depending on the condition and individual patient factors. Always follow your doctor's instructions.
For ED: Typically taken as needed, approximately 30-60 minutes before sexual activity. Dosage is usually 50mg, but can be adjusted based on effectiveness and tolerance.
For PAH: Dosage and administration vary greatly, strictly adhering to your doctor's prescription.
Headache
Facial flushing
Nasal congestion
Dyspepsia (indigestion)
Visual disturbances (blurred vision, bluetint vision)
Muscle aches
Back pain
Dizziness
Rarely: Serious cardiovascular events (e.g., heart attack, stroke), hearing loss
Moderate alcohol consumption may be acceptable, but excessive alcohol use can exacerbate side effects and impair the medication's effectiveness. Consult your doctor.
Sildenafil may cause dizziness or visual disturbances. Avoid driving or operating machinery if affected.
Sildenafil is not indicated for use in women and should be avoided during pregnancy and breastfeeding.
Sildenafil is not approved for use in children.
Kidney impairment may affect how the body processes sildenafil. Dosage adjustments may be necessary.
Liver impairment may affect how the body processes sildenafil. Dosage adjustments may be necessary.
Your doctor or pharmacist
The product monograph (patient information leaflet supplied with the medication)
Reputable medical websites such as those of national health services or professional medical organizations.
