Cialis is a drug for the treatment of impotence (erectile dysfunction) in men and is a selective inhibitor of phosphodiesterase type V with a fairly pronounced effect. Mechanism of erection is nitric oxide when exposed to the male erogenous zones, and for relaxation of smooth muscles of blood vessels to the penis requires phosphodiesterase V.
How does Cialis?
Fosfodiesteraza V type interacts with specific substances in the corpus cavernosum penis, which leads to the expansion of blood vessels and blood flow to the organ. It should be noted that substances that are affected by Cialis, are not only in the male genitalia, and some other organs - the brain, lung, kidney, muscle musculoskeletal system and all of the blood vessels. The exposure to substances present in these organs, several thousand times less pronounced than the effects on enzymes cavernous body of the penis.
Side effects from taking the drug often due to the fact that cialis affects the retina of the eye. The tool does not have a negative effect on eye pressure and cause other changes in the organs of vision.
Side effects from taking the drug often due to the fact that cialis affects the retina of the eye. The tool does not have a negative effect on eye pressure and cause other changes in the organs of vision.
The principle of operation of Cialis
Also noteworthy is the fact that Cialis effect occurs only when there is sexual stimulation. It helps to normalize the male sexual activity, providing a beneficial effect on erection. Its effect can be seen in 15 minutes after taking the drug, it is stored within a half day. A healthy man can not be afraid of the drug on blood pressure or cardiovascular system, also when taking Cialis is not impaired color perception compared with other drugs of this type (Viagra, Levitra)
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