Levitra is more effective and safer than the other drugs
Comparisons between the drugs
Very few drug trials are run on a comparative basis. Pharmaceutical companies feel they can lose out if direct comparisons are made. However, a limited number of trials have compared effectiveness in treating erectile dysfunction and allow general conclusions to be drawn.
Viagra was the first in time and, because of patent protection, no other manufacturer could simply copy the chemistry. The new drugs had to be developed independently. This means Cialis and Levitra work in a similar way, but there are real differences between all three.
Some men respond differently to the drugs
Because of their slightly different chemistry, the drugs do not work equally well in all men. So, if you take one drug and find it does not work as expected, you should first ask your doctor whether there are any physical reasons for the failure. If not, switch to one of the other drugs. Trial-and-error is the best way to find the drug that works best in your body.
Remember the precautions
All three drugs do not react well if you drink too much alcohol and you will encounter side effects if you take any drug containing a nitrate. Grapefruit, both as a fruit and juiced, should be avoided.
Why prefer Viagra?
This was the first and, as such, it’s the benchmark against which to measure the others. Now available for more than ten years, it has proved itself as the leader in most markets around the world.
Why prefer Cialis?
This produces the longest response time. Whereas Viagra and Levitra enable erections for about five hours, Cialis gives erections for up to thirty-six hours using the as-needed version. There’s also a daily version which enables men to enjoy sex 24/7.
Why prefer Levitra?
Because it gives you the most powerful reaction with the smallest dose. Clinical trials have shown Viagra and Cialis fail if there is physical damage caused by injury, a disease such as diabetes or by prostate surgery. Levitra is more likely to produce erections, even following prostate surgery.
Are these drugs for everyone?
If you have recently had a stroke or heart attack, you must consult a doctor before taking any of these drugs. You also need advice on dosage if you are older or have liver or kidney disease. Finally, if you have any genetic eyesight condition and still smoke, you should quit smoking and take advice on safety. A few men have had problems with their sight after taking these drugs.