Levitra is a phosphodiesterase-PDE5 inhibitor for treating men with a sexual problem known as erectile dysfunction, or impotence. This drug contains vardenafil which is supplied in tablet form (2.5mg, 5mg, 10mg and 20mg).

Vardenafil blocks an enzyme that prevents blood flowing to the penis. This will enable a man to get a firm erection while he is sexually aroused. Levitra is also useful for men who can get erections but they do not last long enough for sexual intercourse to be successful.

Levitra is not to be used by women. This medication does not act as a contraceptive, and it will not protect you against sexually transmitted diseases such as syphilis, gonorrhea, hepatitis B, or AIDS.

How to use Levitra

Your dose should be taken, with or without food, about one hour before you are sexually aroused. Only use this medication one time per day. For the best effect, avoid eating fatty foods before using Levitra. This could hinder the rate of absorption.

Check with your doctor if you can eat any product containing grapefruit while using Levitra. There have been reports that grapefruit can react badly with this medication.

Your doctor will have prescribed a dose suitable for your individual needs. Therefore do not alter this dose unless you have checked with your doctor.

Levitra side effects

Many people do not have any side effects while using Levitra. You may experience some mild side effects like facial flushing, headache, upset stomach, blocked nose, heartburn, nausea, or dizziness. You also might notice a change in your vision, e.g. your eyes may be more sensitive to bright light, you may experience blurred vision, or you might have difficulty in distinguishing the difference between green and blue colors.

In very rare cases, there may cause an alarming loss in vision (one or both eyes). It is however not known if this is a direct cause of Levitra. This condition is called NAION, and it is very serious. If you do lose your vision after taking Levitra, be sure to get hold of your doctor as quickly as possible. You will be more susceptible to NAION if you smoke, if you are older than 50, if you have had an eye problem called crowded disk, or if you have diabetes, heart problems, or high cholesterol.

Other serious side effects may include an irregular heart rate, memory loss, or convulsions. Call a doctor immediately.

Sexual intercourse can strain the heart, particularly if you have had previous heart problems. If, during intercourse, you experience any of the following symptoms, you should immediately stop all sexual activity and call a doctor: chest pain, fainting, or severe dizziness.

Although rare, some men have experienced an erection that lasts too long, or a painful erection. If your erection does not go down after 4 hours, call a doctor immediately. This is extremely dangerous and you could suffer permanent sexual dysfunction.

If you experience hearing problems after using Levitra, or have a constant ringing in your ears, do not take any future doses without reporting to your doctor.

Although rare, some men have experienced a severe allergic reaction to Levitra. The symptoms are swelling in and around the face, rash, hives, trouble breathing, or severe dizziness. Get emergency aid immediately.

Levitra could cause other side effects that have not been detailed in this information guide. Therefore if you experience any other unpleasant, uncomfortable or painful symptoms, be sure to tell your doctor.

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