Levitra works by preventing the action of a chemical in the body called phosphodiesterase type 5. This means that the blood vessels are kept dilated for longer, improving blood flow to the penis and maintaining an erection.

Before taking Levitra

Before taking Levitra make sure your doctor or pharmacist knows:

• If you have liver or kidney problems
  
• If you have problems with your eyesight
  
• If you have heart disease
  
• If you have a physical abnormality of your penis
  
• If you drink a lot of grapefruit juice
  

How to take Levitra

Take your medicine approximately 25 to 60 minutes before sexual activity.

Your medicine can be taken with or without food.

Getting the most from your treatment

• Avoid foods high in fat content; it may take longer for your medicine to work.
  
• Avoid large quantities of alcohol; it makes problems with maintaining an erection worse.
  
• Avoid grapefruit juice; it may interfere with your medicine.
  
  

Side Effects:

Along with their useful effects all medicines can cause unwanted side effects, which usually improve as your body adjusts to the new medicine. Speak with your doctor or pharmacist if any of the following side effects continue or become troublesome:

Headaches, dizziness, sleepiness, problems with vision, blocked nose, indigestion or a general feeling of sickness.

Important information about all medicines

• Keep all medicines out of the sight and reach of children
  
• Make sure that the person prescribing this medicine knows about any other medicines that you are taking. This includes medicines you buy and herbal and homeopathic medicines.
  
• If you buy any medicines check with a pharmacist that they are safe to take with your other medicines
  
• Before taking this medicine tell your doctor if you have ever had an allergic reaction after taking any medicine
  
• Never take more than the prescribed dose. If you suspect that you or someone else has taken an overdose of this medicine go to the accident and emergency department of your local hospital at once. Always take the container with you, if possible, even if it is empty.
  
• If you are having any treatment like an operation or dental treatment tell the person carrying out the treatment which medicines you are taking
  
• Always read the printed information leaflet that comes with your medicine
  
• This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.
  
• Never keep out of date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.
  
• If you have any questions about this medicine ask your pharmacist