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How common is erectile dysfunction? Most men have occasional times when they cannot get an erection. For example, you may not get an erection so easily if you are tired, stressed, distracted, or have drunk too much alcohol. For most men it is only temporary, and an erection occurs most times when you are sexually aroused. However, some men have persistent, or recurring, ED. It can occur at any age, but becomes more common with increasing age. About half of men between the ages of 40 and 70 have ED. About 7 in 10 men aged 70 and above have ED. guide to online viagra buy viagra online discount cialis buy cialis Vacuum devices - There are several different devices. Basically, you put your penis into a plastic container. A pump then sucks out the air from the container to create a vacuum. This causes blood to be drawn into the penis and cause an erection. When erect, a rubber band is placed at the base of the penis to maintain the erection. The plastic container is then taken off the penis and the penis remains erect until the rubber band is removed (which must be removed within 30 minutes). cialis dosage online a href cialis online buy propecia for sale online What Causes Erectile Dysfunction? Common causes of ED include diseases that affect blood flow, such as atherosclerosis (hardening of the arteries) or venous leakage (weak veins); nerve diseases; psychological factors, such as stress, depression, and performance anxiety; and injury to the penis. Chronic illness, certain medications, and a condition called Peyronie's disease (scar tissue in the penis) can also cause ED. How should vardenafil (Levitra) be administered? The recommended starting dose of vardenafil is 10 mg taken orally approximately one hour before sexual activity. The dose may be adjusted higher or lower depending on efficacy and side effects. The maximum recommended dose is 20 mg, and the maximum recommended dosing frequency is no more than once per day. Vardenafil can be taken with or without food. Prostaglandin E1 injection test is sometimes performed to determine the penile blood flow. Prostaglandin is directly injected into the corpora cavernosa in order to cause dilation of blood vessels and promote blood flow into the penis. If erection ensues, it confirms normal or adequate blood flow to the penis. This can also provide information about possible therapeutic options. PSA levels: PSA (prostate specific antigen) blood levels and prostate examination to exclude prostate cancer is important before starting testosterone treatment since testosterone can aggravate prostate cancer. Medication (tablets taken by mouth) In 1998, the first tablet to treat ED was launched. This made a huge impact on the treatment of ED. There are now four different tablets licensed in the UK to treat ED: Apomorphine (trade name Uprima®) works by increasing the level of certain chemicals in the brain which are involved in sending messages down nerves to the penis when you are sexually aroused. You take a tablet, which dissolves under the tongue, 20 minutes before you plan to have sex. online rx viagra buy viagra buy viagra online order buy viagra online