Currently, the pharmaceutical market offers a huge number of drugs to treat the problems of male potency. Patients suffering from erectile dysfunction are offered for the treatment prostaglandin analogues, activators of NO-synthase, phosphodiesterase-5 inhibitors, androgens, myotropic antispasmodics and many more. For the average buyer to understand this diversity is difficult. And doctors may prescribe the medications for the purchase of which the drug supplier pays them a fee. Therefore, before agreeing to the treatment with one or another medication, patients can examine the different features of the most popular pills and find out at least what effect they wish to have. If we talk about such well-known drugs like Viagra and Cialis, to find information about them on the internet isn’t difficult, so it is possible to comprare Viagra online with Cialis.

Thus, if comprare Viagra online with Cialis, which can be found that they have a lot in common:
1. They don’t change the level of testosterone and don’t effect on sperm motility;
2. Cialis and Viagra don’t provide an erection of the penis. They work only when genitals or erogenous zones get stimulation;
3. overdose of these drugs can lead to different side effects;
4. active moieties of both Viagra and Cialis penetrate into the circulatory system and increases blood flow to the penis cavernous body;
5. Viagra and Cialis should be taken with caution and only under the supervision of a physician with the deformation of the penis, stomach and duodenum ulcers, heart failure;
6. You can buy Viagra online as well as Cialis;
7. You shouldn’t take these medications if you are tired or nervous and don’t feel like having sex;
8. General side effects are a slight headache, dizziness, skin redness or stuffy nose and ears.

If we talk about the distinctive features, then comprare Viagra online with Cialis indicate that this applies mainly to the duration of their action on the male body. So:

1. Active moiety of Viagra is Sildenafil, and Cialis – Tadalafil;
2. Viagra usual dose is 100mg, Cialis – 20mg;
3. Viagra provides fast and strong erection while Cialis – mild erection enhancement during sexual intercourse;
4. Viagra’s onset of action is 45-50 minutes while Cialis’ one is 15-20 minutes;
5. Viagra action lasts for four hours and Cialis action lasts for thirty-six hours;
6. During using of Viagra men feel a desire of multiple sexual intercourses. Cialis leads to advanced sexual desire or libido;
7. Viagra shouldn’t be taken together with alcohol. At least you can drink alcohol one hour before taking Viagra. The use of Cialis doesn’t depend on it much. You can drink a little alcohol 15 minutes before taking Cialis.
8. It’s not recommended to eat fatty food if you’re going to take Viagra. Fatty foods do not affect the action of Cialis.

If you comprare Viagra online you will know what to expect from these medicines and even can choose the best one for you before visiting a doctor.