USES
Levitra (Vardenafil) is used to treat male sexual function problems (impotence or erective dysfunction) by blocking a certain enzyme (phosphodiesterase-PDE5). In combination with sexual stimulation, Levitra works by helping the blood flow into the penis to achieve and maintain an erection. Levitra is not indicated for use in women. Use of Levitra does not protect against sexually transmitted diseases (e.g., HIV, hepatitis B, gonorrhea, syphilis). Practice "safe sex" such as using latex condoms. Consult your doctor or pharmacist for more details.
HOW TO USE
Levitra is taken by mouth as needed, 1 hour before sexual activity with or without food; or use as directed by your doctor. Do not take more often than once daily as needed. A high fat meal may decrease the amount of Levitra that is absorbed. Avoid eating grapefruit or drinking grapefruit juice while you are being treated with Levitra unless your doctor instructs you otherwise. The dosage is based on your medical condition, response to therapy, and other medications you may be taking (see also Drug Interactions section). Consult your doctor or pharmacist for more details. Read the patient information leaflet provided by your pharmacist and ask questions if any of the information is unclear.
SIDE EFFECTS
Headache, flushing, nasal stuffiness, stomach upset, heartburn, runny nose, dizziness, or nausea may occur. Vision changes such as increased sensitivity to light, blurred vision, or impaired blue/green color discrimination may also occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Tell your doctor immediately if any of these highly unlikely but very serious side effects occur: fast/slow/irregular heartbeat. Sexual activity may put extra strain on your heart, especially if you have heart problems. If you have heart problems and experience any of these serious side effects while having sex, stop and tell your doctor immediately of: severe dizziness, fainting, chest pain. In the unlikely event you have a painful or prolonged erection (lasting more than 4 hours), stop using Levitra and seek immediate medical attention or permanent problems could occur. A serious allergic reaction to Levitra is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching, unusual swelling, severe dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.
PRECAUTIONS
Before taking Levitra, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Before using Levitra, tell your doctor or pharmacist your medical history, especially of: penis conditions (e.g., angulation, fibrosis/scarring, Peyronie's disease), history of painful/prolonged erection (priapism), sickle cell anemia, blood system cancers (e.g., leukemia or myeloma), eye problems (e.g., retina diseases like retinitis pigmentosa), kidney disease, liver disease, bleeding disorders, active stomach ulcers, heart problems (e.g., recent heart attack or serious arrhythmia within past 6 months, heart failure, coronary artery disease with unstable angina, aortic stenosis, idiopathic hypertrophic subaortic stenosis, congenital QT prolongation), recent stroke within past 6 months, very high or low blood pressure. Levitra may make you dizzy or cause vision changes; use caution engaging in activities requiring alertness such as driving or using machinery. Limit alcoholic beverages. To minimize dizziness and lightheadedness, get up slowly when rising from a seated or lying position. Caution is advised when using Levitra in the elderly because they may be more sensitive to the side effects of the drug. Levitra is not indicated for use in women or children.
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