Patients with ED report great success with Viagra, Levitra, and Cialis. All three drugs have been approved for the treatment of ED by the Food and Drug Administration, and are available through a regular or an online pharmacy.
The NIH cites a wide range of conditions that account for almost three-quarters of reported cases of ED. Diabetes, kidney disease; chronic alcoholism, multiple sclerosis, atherosclerosis, vascular disease, and neurologic disease are common causes of ED.

Viagra works at treating erectile dysfunction in the first place,by blocking two specific enzymes in the body, known as PDE5 and PDE6, which exist throughout the penis. Viagra (Sildenafil), also known as “The Blue Pill”, is available in 25mg, 50mg and 100mg pills. Viagra can be taken once per day, between 30 minutes to 4 hours before sexual intercourse.

Viagra’s common side effects are sneezing, headaches, flushing, dyspepsia (heartburn, pain), dizziness, palpitations (when you can feel the beating of the heart), and photophobia (excessive sensitivity to light) while the more serious side effects are priapism (a painful condition when an erection doesn’t stop for 4 hours), heart attacks, low blood pressure, stroke and even sudden death. There have been some cases of blindness caused by Viagra, although it is still disputed.
Viagra starts working in around 45 minutes on average, and lasts 4 hours. There are many cheap versions of Viagra available online, however many of them are illegal and fake. There are cheaper, generic versions sold online (with the same side effects)

Cialis (Tadalafil) has shown more effectiveness than Viagra in many cases, because Cialis is a stronger PDE5 inhibitor. A 20mg dose of Cialis is comparable to a 100mg dose of Viagra.

Common side effects of Cialis include headache, indigestion, back pain, flushing. Back pain can occur 12 to 24 hours of taking the drug; however they go away in a few days. Cialis can cause priapism as well, and vision changes (difficulty in telling the difference between green and blue colors)

Cialis has an advantage over Viagra because it can work up to 36 hours compared to the 4 hour-effect of Viagra. As with Viagra, there are cheap generic versions available online.

Levitra (Vardenafil) is available in 2.5mg, 5mg, 10mg and 20mg orange colored pills. A 10mg dose of Levitra is comparable to 50mg of sildenafil.

As with Viagra and Cialis, Levitra should not be used more than once a day, and is contraindicated for men who are taking nitrates or alpha-blockers. Levitra has side effects as well, including nausea, abdominal pain, back pain, vision changes, photosensitivity, eye pain, organ swelling, high blood pressure, palpitation, rashes and priapism. Some serious side effects are heart attacks, penile tissue damage and permanent impotency. Your partner needs sexual satisfaction and if you are unable to satisfy her sexual hunger she might look at other options. Sexual dissatisfaction makes a man to fall prey to bitterness in life. A man is not fully happy until his sexual intimacy is aimed to make his wife physically content. Among various health problems in men, impotence or Erectile Dysfunction (ED) is foremost in being a big talk of the day today.
Levitra works in the same way as Viagra and other erectile dysfunction treatment drug works but the side effects associated with it are far less than other similar drugs. With the dosage of the drug you would be able to get an erection and maintain the erection till you ejaculate. Vardenafil hydrochloride in Levitra is a boon to the diabetes patients, who are at a greater risk of erectile dysfunction due to uncontrolled sugar in blood that impedes the blood flow to the penis. Levitra has proved to be effective even in tight situations like high blood pressure as well as diabetes type2 when other ED drugs have failed to work.
Levitra improves the sexual power of a man and in the process helps in satisfying the deep and underlying feelings of the women. Levitra can improve erections in 80% of men with erectile dysfunction.

Levitra is a product of Bayer and GlaxoSmithKline, a world class research based pharmaceuticals and healthcare company. It was launched as a sole competitor to the blockbuster ED pill Viagra.