It is important that you tell all of your doctors that you take vardenafil. If you need emergency medical care for a heart problem, it is important that your doctor knows when you last took vardenafil.
Levitra® also contains vardenafil. If you take too much vardenafil or take it together with these medicines, the chance for side effects will be higher.
If you experience a prolonged or painful erection for 4 hours or more, contact your doctor immediately. This condition may require prompt medical treatment to prevent serious and permanent damage to your penis.
This medicine does not protect you against sexually transmitted diseases. Use protective measures and ask your doctor if you have any questions about this.
It is important to tell your doctor about any heart problems you may have now or may have had in the past. This medicine can cause serious side effects in patients with heart problems.
Do not use this medicine if you are also using a nitrate medicine, often used to treat angina (chest pain). Nitrate medicines include nitroglycerin, isosorbide, Imdur®, Nitro-Bid®, Nitrostat®, Nitro-Dur®, Transderm Nitro®, Nitrol® Ointment, and Nitrolingual® Spray. Some illegal ("street") drugs called "poppers" (such as amyl nitrate, butyl nitrate, or nitrite) also contain nitrates.
Do not drink excessive amounts of alcohol (e.g., 5 glasses of wine or 5 shots of whiskey) when taking vardenafil. When taken in excess, alcohol can increase your chances of getting a headache or getting dizzy, increase your heart rate, or lower your blood pressure.
If you have sudden loss of vision in one or both eyes, stop using vardenafil and contact your doctor right away.
Stop using this medicine and check with your doctor right away if you have sudden decrease in hearing or loss of hearing, which may be accompanied by dizziness and ringing in the ears.
Do not eat grapefruit or drink grapefruit juice while you are using this medicine.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.