Tadalafil is used to treat impotence (difficulty getting and maintaining an erection) in men.
Take tadalafil with a glass of water between half an hour and 36 hours before having sex, or as directed.
Take tadalafil when required. The maximum dose is one tablet a day.
Some medicines available without a prescription may react with tadalafil 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|
Headache, dizziness, hot flushing
Runny or blocked nose
Back pain, muscle aches and pains
|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?
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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