LEVITRA:

LEVITRA is a prescription medicine that is used to treat erectile dysfunction (ED). Men taking nitrate drugs, often used to control chest pain (also known as angina), should not take LEVITRA. Such combinations could cause blood pressure to drop to an unsafe level.

How Long Does Levitra Last?

Many people ask, "How long does Levitra last?" Levitra usually lasts about four hours, though it starts to lose its effectiveness after a couple of hours. There are numerous factors that can increase or decrease how long Levitra lasts. Some factors that can increase the amount of time Levitra stays in the body include having severe liver disease (such as cirrhosis) and taking certain medicines. Taking Levitra with a high-fat meal is among the factors that can decrease how long the drug lasts.

DOSING

For most patients, the recommended starting dose of LEVITRA is 10 mg, taken orally approximately 60 minutes before sexual activity. The dose may be increased to a maximum recommended dose of 20 mg or decreased to 5 mg based on efficacy and side effects. The maximum recommended dosing frequency is once per day. LEVITRA can be taken with or without food. Sexual stimulation is required for a response to treatment.

How should this medicine be used?

Levitra comes as a tablet to take by mouth. It is usually taken as needed, with or without food, 60 minutes before sexual activity. Levitra usually should not be taken more often than once every 24 hours. If you have certain health conditions or are taking certain medications, your doctor may tell you to take Levitra less often. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist 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.

Your doctor will probably start you on an average dose of Levitra and increase or decrease your dose depending on your response to the medication. Tell your doctor if Levitra is not working well or if you are experiencing side effects.

Recommended Storage:

Store at 25?°C (77?°F); excursions permitted to 15-30?°C (59-86?°F).

Common Side Effects of Levitra

Levitra has been studied extensively in clinical trials, with over 4,430 people having been evaluated. In these studies, side effects occurring in a group of people taking the drug are always documented and compared to the side effects that occur in a similar group of people not taking the medicine. This way, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.

Based on these studies, common Levitra side effects (occurring in more than 2 percent of all cases) include:

• Headache - in up to 15 percent of people
• Facial flushing - up to 11 percent
• Indigestion or upset stomach - up to 4 percent
• Stuffy or runny nose (rhinitis) - up to 9 percent
• Inflammation of the sinuses (sinusitis) - up to 3 percent
• Flu-like symptoms - up to 3 percent
• Accidental injury - up to 3 percent
• Increased levels of creatine kinase in the blood (creatine kinase is an enzyme normally found in muscles and the brain) - up to 2 percent
• Nausea - up to 2 percent
• Dizziness - up to 2 percent
• Back pain - up to 2 percent.

These side effects normally go away after a couple of hours.