Other medicines and VIAGRA

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.

VIAGRA tablets can affect the effect of certain medicines, especially those used to treat chest pain. If you become acutely ill, you should inform the doctor, pharmacist or nurse that you have taken VIAGRA and when you did so. Do not take VIAGRA with other medications unless your doctor says you can.

You should not take VIAGRA if you are taking medicines called nitrates, because

those in the combination of these medications can cause severe drop in blood pressure. Always tell your doctor, pharmacist or nurse if you are taking any of these medicines, which are often given to relieve angina pectoris or 'chest pain'.

You should not take VIAGRA if you are taking medicines known as nitric oxide donors such as amyl nitrite ("poppers"), as a combination of such medicines with VIAGRA can also lead to a severe drop in blood pressure.

Tell your doctor or pharmacist if you are already taking riociguat.

If you are taking so-called protease inhibitors for the treatment of HIV , your doctor may prescribe that you start with the lowest dose of VIAGRA (25 mg).

Some patients taking alpha-receptor blockers to treat high blood pressure or prostate problems may experience dizziness or fainting, which may be caused by low blood pressure when standing up or standing up quickly. Some patients have experienced these symptoms when taking VIAGRA with alpha-receptor blockers. This most likely happens within 4 hours after taking VIAGRA. To reduce the risk of these symptoms, you should take alpha-receptor blockers regularly at a fixed daily dose before you start taking VIAGRA. Your doctor may prescribe a lower dose (25 mg) of VIAGRA.
VIAGRA with food, drink and alcohol

VIAGRA can be taken with or without food, but if you take it with a heavy meal it may take a little longer to work.

Alcohol intake can temporarily reduce the ability to get an erection . To get the maximum effect from your medication, you should not drink large amounts of alcohol before taking VIAGRA.
Pregnancy, breastfeeding and fertility

VIAGRA should not be used by women.
Driving  비아그라 구입  and use of machinery

VIAGRA may cause dizziness and may affect vision. You should be aware of how you react to VIAGRA before driving or using machinery.
VIAGRA contains lactose

If you are intolerant to certain sugars, such as lactose , you should contact your doctor before taking VIAGRA.

VIAGRA contains sodium

This medicine contains less than 1 mmol (23 mg) of sodium per tablet, i.e. it is almost 'sodium-free'.