Package leaflet warnings - Viagra (Sildenafil)

Do not take VIAGRA

* If you are taking medicines called nitrates, as the combination may cause a potentially dangerous decrease in your blood pressure. Tell your doctor if you are taking any of these medicines which are often given for relief of angina pectoris (or “chest pain”). If you are not certain, ask your doctor or pharmacist.

* If you are using any of the drugs known as nitric oxide donors such as amyl nitrite (“poppers”), as the combination may also lead to a potentially dangerous decrease in your blood pressure.

* If you are allergic (hypersensitive) to sildenafil or any of the other ingredients of VIAGRA.

* If you have a severe heart or liver problem.

* If you have recently had a stroke or a heart attack, or if you have low blood pressure.

* If you have certain rare inherited eye diseases (such as retinitis pigmentosa).

* If you have ever had loss of vision due to non-arteritic anterior ischaemic optic neuropathy (NAION).

Take special care with VIAGRA
Tell your doctor

* If you have sickle cell anaemia (an abnormality of red blood cells), leukaemia (cancer of blood cells), multiple myeloma (cancer of bone marrow).

* If you have a deformity of your penis or Peyronie’s Disease.

* If you have problems with your heart. Your doctor should in that case carefully check whether your heart can take the additional strain of having sex.

* If you currently have a stomach ulcer, or a bleeding problems (such as haemophilia).

* If you experience sudden decrease or loss of vision, stop taking VIAGRA and contact your doctor immediately.


Extracted from European Medicines Agency package leaflet information. (EMEA/H/C/202, November 2008)