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What is Cialis used to treat? Cialis is approved for the treatment of men who experience difficulty having and maintaining an erection (impotence). 

How does Cialis online work? Cialis works by enhancing the effects of one of the chemicals the body normally releases into the penis during sexual arousal. This allows an increase of blood flow into the penis. An erection is the result of an increase in blood flow into certain internal areas of the penis. How is Cialis different from the currently approved products for erectile dysfunction (ED)? Cialis is different from other currently approved products for ED in that it stays in the body longer. However, there were no studies that directly compared the clinical efficacy and safety of Cialis to other products. 

How do I take Cialis online? Cialis is taken orally before sexual activity, not more than once daily. Cialis may be taken with or without food. In some patients, the dose strength and maximum frequency of use may be adjusted. For more detailed information consult with your health care provider.

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Cialis tablets contain the active ingredient tadalafil, which is a type of medicine called a phosphodiesterase type 5 inhibitor. It is used to help men with erectile dysfunction to acheive and maintain an erection, and can also be used to relieve the symptoms of an enlarged prostate gland. Tadalafil works by preventing the action of a chemical in the body called phosphodiesterase type 5.

An erection is produced via a complex chain of events, involving signals from the nervous system and the release of chemical messengers within the tissues of the penis. One of these chemical messengers is called cyclic GMP.

Cyclic GMP causes the blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessel walls. This allows more blood to enter the penis, which ultimately results in the penis becoming rigid and erect.



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"The recommended dose of Cialis is 10 mg, taken prior to anticipated sexual activity. The dose may be increased to 20 mg or decreased to 5 mg."

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FDA approval of Cialis was based on 2 U.S. and 5 international randomized, multicenter, double-blinded, placebo-controlled trials. In total, Cialis has been evaluated in over 4,000 subjects. The primary outcome measures were the Erectile Function (EF) domain of the International Index of Erectile Function (IIEF) and Questions 2 and 3 from Sexual Encounter Profile (SEP). The IIEF is a 4-week recall questionnaire administered at the end of a treatment-free baseline period and at follow-up visits after enrollment. The IIEF EF domain has a 30-point total score, where higher scores reflect better erectile function. SEP is a diary in which subjects recorded each sexual attempt made during the study.

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