Sexual Dysfunction Association www.sda.uk.net Email: info@sda.uk.net VIAGRA VIAGRA (sildenafil) is the first oral treatment for erectile dysfunction (impotence) to be licenced in the UK. This fact sheet provides basic information on VIAGRA; for more detailed information you should consult your doctor. What is VIAGRA? VIAGRA belongs to a group of medicines called phosphodiesterase type 5 inhibitors. Itis a blue, diamond shaped, oral tablet prescribed to treat men suffering from clinicalerectile dysfunction. It is not an aphrodisiac and does not increase libido. VIAGRA works in a natural way, so sexual stimulation will be required.How does VIAGRA works by helping to relax the blood vessels in the penis, allowing blood to flowVIAGRA work? into the penis causing an erection. However, VIAGRA works naturally and will onlyhelp a man to get an erection if he is sexually stimulated. It should not be taken bymen who do not have erectile dysfunction.How do you take VIAGRA is available in three strengths - 25mg, 50mg and 100mg. The initial dose isVIAGRA? selected by the doctor, based on need. VIAGRA should be swallowed whole with somewater about an hour before anticipated sexual activity. The amount of time it takes towork varies from person to person, but VIAGRA works quickly, on average 25 minutes,but may be as soon as 12 minutes. Within a 4 to 6 hour period after taking the tabletan erection should occur in response to sexual stimulation. A man may find thatVIAGRA takes longer to work if taken with a heavy meal.Alcohol consumption can temporarily interfere with the erection process. To get themaximum benefit from the medication it is advisable not to drink large amounts ofalcohol before taking VIAGRA, as alcohol can impair sexual activity.VIAGRA should not be used more than once a day. Do not take VIAGRA with other medicines unless your doctor tells you that you can. What side effects The manufacturers have tested the drug on nearly 13,000 men during 13 completedmay be associated and ongoing clinical trials. When taken at the recommended doses some side effectswith VIAGRA? have been reported although they were generally mild to moderate and brief in length.The most common side effects are headache and facial flushing. Less commonlyreported are indigestion, dizziness, stuffy nose and effects on vision (predominantly ablue colour tinge to vision and increased brightness of light or blurred vision).Who cannot take Patients who are taking any medicines containing nitrates. These medicines areVIAGRA? commonly prescribed for relief of angina pectoris “chest pain”. In combination withVIAGRA they could seriously lower blood pressure. Patients should inform their Doctorif they are taking any of these medicines or ask if they are not certain.Who cannot take VIAGRA? Known hypersensitivity to any component of the drug VIAGRA.(Continued) Recent stroke, heart attack, or low blood pressure, or in men for whom sexual activity isCertain rare inherited eye diseases (such as retinitis pigmentosa).VIAGRA should not be taken in combination with other erectile dysfunction treatments.Patients should not take VIAGRA (50mg 0r 100mg) within 4 hours of taking an alphaWhat conditions may prevent a Diseases that might result in prolonged erection e.g. sickle cell anaemia (an abnormalityman using of red blood cells), multiple myeloma (cancer of bone marrow) or leukemia (cancer ofVIAGRA? Bleeding disorders (such as haemophilia) or peptic ulceration (stomach ulcer).Can women take VIAGRA should not be taken by women. It is not licensed for use in women and it’sVIAGRA? safety in women has not been tested.What happens if I An increase in dose should always occur under close medical supervision. Clinical trialsincrease the have shown that increasing the drug beyond the maximum recommended dose ofdose? 100mg simply increases the side effects and not the efficacy.If you feel you need a higher dose talk to your doctor. Men with diabetes have beenshown to need to take 100mg preferentially.Can I drive while VIAGRA can cause dizziness and effects on vision. Patients should be aware of howtaking VIAGRA? they react to the drug before they drive or operate machinery.Will it work for If Viagra does not help you to get an erection, or your erection does not last longeveryone? enough for you to complete your chosen sexual activity you should tell your doctorIt may be appropriate for you to try the higher dose of Viagra. However it can take several attempts to get back into practice again. There are other effective treatment options available and information can be obtainedfrom your doctor or the Sexual Dysfunction Association.An invitation. . to enrol as a friend of the Sexual Dysfunction Association. For a small annualsubscription, you will receive copies of One in Ten, the Association’s newsletter and youwill be contributing to an Association which helps overcome the problems of male andfemale sexual dysfunction. If you are interested, please telephone or write for anTelephone Helpline 0870 7743571
Roger Lloyd Bertholf ADDRESS: University of Florida Health Science Center EDUCATION: Degree (Major) Institution APPOINTMENTS: Institution University of Florida College of Medicine University of Florida College of Medicine University of Florida College of Medicine Post-Doctoral Research Associate University of Virginia School of Medicine University of Virginia