Take sildenafil up to 4 hours before you want to have sex. For sildenafil to work properly, you’ll need to be sexually excited. Dosage and strength for pulmonary hypertension .Storage Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. How to take tablets Swallow tablets whole with a drink of water or juice but not grapefruit juice. When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and site usage information with other information we have about you. Some examples of nitrates are nitroglycerin Nitro-Dur, Nitrostat, others , isosorbide mononitrate Monoket and isosorbide dinitrate Bidil. Keep out of the reach of children.FAQ What is Viagra? Viagra relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body. Viagra is used to treat erectile . Take sildenafil up to 4 hours before you want to have sex. For sildenafil to work properly, you’ll need to be sexually excited. Dosage and strength for pulmonary hypertension . This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. It continues to work for up to 4 hours, although its action is usually less after 2 .This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. Follow your doctor’s orders or the directions on the label. The amount of medicine that you take depends on the strength of the medicine. If too much is used, the chance of side effects is increased. Do not take it more than 3 times a day. However, the dose is usually not more than 80 mg 3 times a day. This medicine works best when you take it on an empty stomach an hour before sex.
How and when to take sildenafil – when do i need viagra