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 Peyronies 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.
You should not use VIAGRA with any other oral or local treatments for erectile dysfunction.
Special considerations for children and adolescents
VIAGRA should not be given to individuals under the age of 18.
Special considerations for patients with kidney or liver problems
You should tell your doctor if you have kidney or liver problems. Your doctor may decide on a lower dose for you.
Taking other medicines:
Please tell your doctor or pharmacist if you are taking or have recently taken other medicines, including medicines obtained without prescription.
VIAGRA tablets may interfere with some medicines, especially those used to treat chest pain. In the event of a medical emergency, you should tell any health care professional treating your condition that you have taken VIAGRA and when you did. Do not take VIAGRA with other medicines unless your doctor tells you that you can.
You should not take VIAGRA if you are taking medicines called nitrates, as the combination of these products may cause a potentially dangerous decrease in your blood pressure. Always tell your doctor or pharmacist if you are taking any of these medicines that are often used for the relief of angina pectoris (or ?chest pain?).
You should not take Viagra 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 taking medicines known as protease inhibitors, such as for the treatment of HIV, your doctor may start you on the lowest dose (25 mg) of VIAGRA.
Some patients who take alpha-blocker therapy for the treatment of high blood pressure or prostate enlargement may experience dizziness or light-headedness, which may be caused by low blood pressure upon sitting or standing up quickly. Certain patients have experienced these symptoms when taking VIAGRA with alpha-blockers. This is most likely to occur within 4 hours after taking VIAGRA. In order to reduce the likelihood that these symptoms occur, you should be on a regular daily dose of your alpha-blocker before you start VIAGRA. Your doctor may start you on a lower dose (25 mg) of VIAGRA.
Taking VIAGRA with food and drink
VIAGRA can be taken with or without food. However, you may find that VIAGRA takes longer to start working if you take it with a heavy meal.
Drinking alcohol can temporarily impair your ability to get an erection. To get the maximum benefit from your medicine, you are advised not to drink excessive amounts of alcohol before taking VIAGRA.
Pregnancy and Breast feeding
VIAGRA is not indicated for use by women.
Driving and using machines
VIAGRA can cause dizziness and can affect vision. You should be aware of how you react to VIAGRA before you drive or use machinery.
Important information about some of the ingredients of VIAGRA
If you have been told by your doctor that you have an intolerance to some sugars, such as lactose, contact your doctor before taking VIAGRA.
