Levitra instructions

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Levitra ® (Luh-VEE-Trah) Tablets (vardenafil HCl)

Active Ingredients: Vardenafil

The following product information is not intended to replace the physician's or manufacturer's instructions.

Levitra Common Medical Uses:
Levitra is used to treat erectile dysfunction (impotence) in men age 18 years or older. Levitra increases the body's ability to achieve and maintain an erection during sexual stimulation. Levitra is for use by prescription only. Levitra does not directly cause an erection of the penis, but it alters the body’s response to sexual stimulation by enhancing the effect of the nitric oxide. Nitric oxide causes relaxation of the muscles in the penis, which allows for better blood flow to the penile area. This medication does not cure impotency, increase a man’s sexual desire, protect from sexually transmitted diseases, or serve as birth control. It only helps maintain an erection when a man is sexually excited.

How to Take Levitra:
Take Levitra exactly as your doctor prescribes. Levitra comes as a tablet to take by mouth in different doses (5 mg, 10 mg, and 20 mg). For most men, the recommended starting dose is 10 mg. Your doctor will prescribe the dose that is right for you. It should be taken as needed about 1 hour before sexual activity. Levitra can be taken with or without food. Some form of sexual stimulation is needed for an erection to occur with Levitra. This drug should not be taken more than once a day. Follow the directions on your prescription label carefully, and ask your doctor to explain any part you do not understand. Take Levitra exactly as directed. Do not take more or less of it, or take it more often than prescribed by your doctor, or change your dose of Levitra without talking to your doctor. Levitra should not be taken with grapefruit or grapefruit juice. This medicine can interact with grapefruit and grapefruit juice, and the interaction may have dangerous effects. Contact your doctor or seek emergency medical attention for any erection that lasts longer than 4 hours. A sustained erection can damage the penis.

Levitra Possible Side Effects:
The most common side effects with Levitra are:

• headache
• flushing
• stuffy or runny nose
• indigestion
• upset stomach
• dizziness.

These side effects usually go away after a few hours. Call your doctor if you get a side effect that bothers you or one that will not go away. Levitra may uncommonly cause an erection that won't go away (priapism). If you get an erection that lasts more than 4 hours, get medical help right away. Priapism must be treated as soon as possible or lasting damage can happen to your penis including the inability to have erections. Levitra may uncommonly cause vision changes, such as seeing a blue tinge to objects or having difficulty telling the difference between the colors blue and green. These are not all the side effects of Levitra. For more information, ask your doctor or pharmacist.

Levitra Precautions:
Do not take any other drug used to treat impotence, such as alprostadil (Caverject, Muse, Edex) or yohimbine (Yocon, Yodoxin), without first talking to your doctor. Tell your doctor and pharmacist if you are allergic to Levitra or any of its ingredients, or any other medications. The active ingredient in Levitra is called vardenafil. Before taking Levitra, tell your doctor what prescription and nonprescription medications you are taking especially: any medicines called "nitrates" such as isosorbide (Imdur, Ismo, Isordil) or nitroglycerin (Nitro-Bid, Nitrostat) (nitrates are commonly used to treat angina, angina is a symptom of heart disease and can cause pain in your chest, jaw, or down your arm; some recreational drugs called "poppers" also contain nitrates, such as amyl nitrate and butyl nitrate); medicines called "alpha-blockers" such as terazosin (Hytrin), tamsulosin (Flomax), prazosin (Minipress), and doxazosin (Cardura) (alpha-blockers are sometimes prescribed for prostate problems or high blood pressure; if Levitra is taken with alpha-blockers, your blood pressure could suddenly drop to an unsafe level); medications for high blood pressure; medications to treat an irregular heart rate. Also tell your doctor and pharmacist if you take erythromycin, itraconazole (Sporanox), ketoconazole (Nizoral), phenobarbital, rifampin (Rifadin, Rimactane), ritonavir (Norvir), indinavir (Crixivan), any other medications to treat impotence, or any vitamins or herbal supplements. Tell your doctor if you have been told by your healthcare provider to not have sexual activity because of health problems. Sexual activity can put an extra strain on your heart, especially if your heart is already weak from a heart attack or heart disease.
Before taking Levitra, tell your doctor about all your medical problems, if you have or have ever had:

• an erection that lasted more than 4 hours
• heart problems such as angina, heart failure, irregular heartbeats or heart rate or have had a heart attack. Ask your doctor if it is safe for you to have sexual activity
• low blood pressure or have high blood pressure that is not controlled
• had a stroke
• or any family members have a rare heart condition known as prolongation of the QT interval (long QT syndrome)
• heart, kidney, or liver disease
• retinitis pigmentosa, a rare genetic (runs in families) eye disease
• stomach ulcers
• a bleeding problem
• conditions affecting the shape of the penis (for example, angulation, cavernosal fibrosa, or Peyronie's disease)
• blood cell problems such as sickle cell anemia, multiple myeloma, or leukemia

Levitra should not be taken with grapefruit or grapefruit juice, because Levitra can interact with grapefruit and grapefruit juice, and the interaction may have dangerous effects.

Drug Interactions:
The best way to avoid harmful interactions is to tell your doctor what prescription or nonprescription medications, vitamins, and herbal supplements you are taking. Levitra and other medicines may affect each other. Always check with your doctor before starting or stopping any medicines. Especially tell your doctor if you take any of the following:

• medicines called nitrates;
• medicines called alpha-blockers: Hytrin (terazosin HCl), Flomax (tamsulosin HCl), Cardura (doxazosin mesylate), Minipress (prazosin HCl), Uroxatral alfuzosin HCl);
• medicines that treat abnormal heartbeat: quinidine, procainamide, amiodarone and sotalol;
• ritonavir (Norvir) or indinavir sulfate (Crixivan);
• ketoconazole or itraconazole (such as Nizoral, Sporanox);
• erythromycin;
• other medicines or treatments for erectile dysfunction.

Missed Dose:
Levitra should only be taken as needed approximately 60 minutes prior to sexual intercourse. However, Levitra should not be taken more than one time per day. Doses should be taken at least 24 hours apart.

Overdose:
If you take too much Levitra , call your doctor or emergency room right away.

Storage:
Store at room temperature between 59° and 86° F (15° to 30° C). Keep Levitra and all medicines out of the reach of children.

Notes:
Levitra is only for men with erectile dysfunction (impotence). Levitra is not for women or children. This medicine must be used only under a doctor's care. Do not use Levitra for a condition for which it was not prescribed. Do not give this medicine to other people, even if they have the same symptoms that you have. It may harm them.

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