Understanding Vardenafil's Mechanism of Action

If you have a sudden loss of vision in one or both eyes, contact your doctor right away.

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Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially: Abnormally shaped penis, including a curved penis and birth defects or Crowded disc or low cup to disc ratio in the eye (an eye disorder) or Hyperlipidemia (high fats in the blood) or Multiple myeloma (cancer of the blood) or Non-arteritic anterior ischemic optic neuropathy (NAION; serious eye condition), history of or Smoking—May increase the chance for a serious side effect in the eye called NAION. Blood vessel problems (eg, aortic stenosis, idiopathic subaortic stenosis) or Heart attack (within the last 6 months) or Retinitis pigmentosa (an inherited eye disorder) or Stroke, history of—Should not be used in patients with these conditions.

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Stomach ulcers—Chance of problems occurring may be increased. It is not known if the medicine is safe for use in these patients. Fructose intolerance—The Staxyn® disintegrating tablet contains sorbitol, which can make this condition worse. QT prolongation (rare heart condition), or history of—Use with caution. The effects may be increased because of slower removal of the medicine from the body.

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Phenylketonuria (PKU)—The Staxyn® disintegrating tablet contains aspartame, which can make this condition worse. Use this medicine exactly as directed by your doctor. Do not use more of it and do not use it more often than your doctor ordered. If you use too much, the chance of having unwanted effects is increased. This medicine should come with a patient information leaflet. Check with your doctor right away if you have a sudden decrease in hearing or loss of hearing with dizziness or ringing in the ears. If you already use medicine for high blood pressure (hypertension), vardenafil could make your blood pressure go too low.

Call your doctor right away if you have blurred vision, confusion, dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position, sweating, or unusual tiredness or weakness.

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If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine. For treatment of erectile dysfunction:For oral dosage form (disintegrating tablets):Adults—10 milligrams (mg) as a single dose, no more than once per day, approximately 1 hour before sexual activity.Children—Use is not recommended.For oral dosage form (tablets):Adults 65 years and older—5 milligrams (mg) as a single dose, no more than once per day, approximately 1 hour before sexual activity. Your doctor may buy levitra fast adjust your dose if needed.

What should I do if I accidentally take too much vardenafil?

However, the dose is usually not more than 20 mg once per day.Adults up to 65 years—10 mg as a single dose, no more than once per day, approximately 1 hour before sexual activity. However, the dose is usually not more than 20 mg once per day.Children—Use is not recommended. For oral dosage form (disintegrating tablets):Adults—10 milligrams (mg) as a single dose, no more than once per day, approximately 1 hour before sexual activity.Children—Use is not recommended. Adults—10 milligrams (mg) as a single dose, no more than once per day, approximately 1 hour before sexual activity. For oral dosage form (tablets):Adults 65 years and older—5 milligrams (mg) as a single dose, no more than once per day, approximately 1 hour before sexual activity.

Who should not take vardenafil?

Adults 65 years and older—5 milligrams (mg) as a single dose, no more than once per day, approximately 1 hour before sexual activity. However, the dose is usually not more than 20 mg once per day. Adults up to 65 years—10 mg as a single dose, no more than once per day, approximately 1 hour before sexual activity. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep out of the reach of children. This medicine does not protect you against sexually transmitted diseases (including HIV or AIDS).

Use protective measures and ask your doctor if you have any questions about this.

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Do not keep outdated medicine or medicine no longer needed. Ask your healthcare professional how you should dispose of any medicine you do not use. 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. Do not use this medicine if you are also using a nitrate medicine for angina or high blood pressure. Do not take other medicines unless they have been discussed with your doctor.

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Ask your doctor or pharmacist if you have any questions. You may take this medicine with or without food. This medicine usually begins to work within 60 minutes after taking it and stimulation of the penis is required. If you have any questions about the use of vardenafil, talk to your doctor. If you are using the disintegrating tablet, make sure your hands are dry before you handle the tablet.

Drug Interactions

Do not open the blister pack until you are ready to take the tablet. Peel back the foil and take the tablet out. Do not push the tablet through the foil. Place the tablet on your tongue and allow it to melt. Use only the brand of this medicine that your doctor prescribed.

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Different brands may not work the same way. Do not eat grapefruit or drink grapefruit juice while you are using this medicine. The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements. Along with its needed effects, a medicine may cause some unwanted effects.

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Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur: dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position fast, irregular, pounding, or racing heartbeat or pulse pain or discomfort in the arms, jaw, back, or neck puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Feeling of warmth and redness of the face, neck, arms, and occasionally, upper chest burning feeling in the chest or stomach burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings feeling of constant movement of self or surroundings increased sensitivity of the eyes to sunlight sores, ulcers, or white spots on the lips or tongue or inside the mouth Other side effects not listed may also occur in some patients.

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Some examples of nitrate medicines include nitroglycerin, isosorbide, Imdur®, Nitro-Bid®, Nitro-Dur®, Nitrol® ointment, Nitrolingual® spray, Nitrostat®, and Transderm Nitro®. Some illegal ("street") drugs called "poppers" also contain nitrates such as amyl nitrate and butyl nitrate. Do not use this medicine if you also use riociguat (Adempas®). If you experience a prolonged or painful erection for 4 hours or more, contact your doctor right away. This condition may require prompt medical treatment to prevent serious and permanent damage to your penis. If you notice any other effects, check with your healthcare professional.

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For non-prescription products, read the label or package ingredients carefully. Vardenafil is not indicated for use in children. Safety and efficacy have not been established. Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of vardenafil in the elderly. There are no adequate studies in women for determining infant risk when using this medication during breastfeeding.

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Weigh the potential benefits against the potential risks before taking this medication while breastfeeding. Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

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Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take. Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines. Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. You may report side effects to the FDA at 1-800-FDA-1088.

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Vardenafil is typically taken as needed before sexual activity, often starting at 10 mg per dose.