Vigora comes in the form of a little triangular shaped pill that contains 100 mg sildenafil citrate. The pills come in blister packs containing 12, 20, 60, 90, 120 and 180 pills. The pill is meant to be taken with a glass of water. Take the pill about an hour before you begin sexual activity. Only take one Vigora pill at a time, and never exceed the recommended dosage. Avoid taking more than one pill during a single day.

Vigora can react with certain prescription as well as non prescription drugs, and it's important that you evaluate your medication history to avoid any health complications. Give your doctor a complete list of all the medications you take, and include both prescription drugs, over-the-counter drugs and natural and herbal supplements. Broadly, Vigora must never be combined with medications that contain nitrates. These include nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, Methscopolamine nitrate and Nitroprusside.

Also avoid taking Vigora if you are in the habit of taking recreational drugs like amyl poppers. Vigora must not be taken in combination with drugs that are used to treat HIV/AIDS, high blood pressure, or in the treatment of fungal infections. Beside these, Vigora may also react adversely with Erythromycin, Cimetidine, Nitroprusside and Rifampin.

There may be other drugs that could react with the sildenafil citrate in Vigora. That's why it's very important for you to make a note of your medication history, and consult with your doctor if it is safe to take Vigora. Also consult with your doctor about other habits that you have like smoking, drinking and drug use to ascertain that it is safe for you to take these pills.

Use of sildenafil citrate may not be without its side effects. These can be seen in the form of minor side effects that don't require medical attention like diarrhea, indigestion, flushing and nasal stuffiness. However, contact your doctor if any of these symptoms begin to worsen.

There may be more serious side effects, and these must be brought to the attention of your doctor immediately. These serious side effects include chest pain, changes in vision and hearing, as well as allergic reactions like hives and rashes, fast or irregular heartbeat, seizures and breathing difficulties. Men who experience a prolonged or painful erection must also consult their doctor immediately.

Overall, if you notice any problems like changes in vision, chest pain, arm pain, or faint headedness when you take Vigora and begin sexual activity, stop sexual activity immediately and consult your doctor. It's also important to remember that Vigora is not meant to be used as a protection against sexually transmitted diseases, including HIV/AIDS. You must continue to use condoms to protect against STD's and AIDS even when you are on Vigora.