Sildenafil is used to treat impotence (difficulty getting and maintaining an erection) in men.
Take sildenafil as directed with a glass of water, about one hour before having sex.
Take sildenafil when required. The maximum dose is one tablet a day.
Some medicines available without a prescription may react with sildenafil including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products (e.g. St John's wort) or recreational drugs.
|Side Effects||Recommended action|
Prolonged erection (longer than four hours)
Changes in vision
|Tell your doctor immediately|
|Tell your doctor|
Runny or blocked nose
|Tell your doctor if troublesome|
|Take with food|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. December 2017
For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?
Click on buttons to copy web addresses for this leaflet:
If your browser does not automatically copy these links use its copy command instead.
My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed