It is all the same how old they are, persons are concerned about their sex life and believe it to be important. However, erection difficulties still bring about nervousness for some males, give them no piece and lower their self-appraisal. But it is clear that everyone needs to be up to the mark in sexual affairs. In the most serious situations erectile dysfunction can bring to the worsening and even break of relations.
3 medicines curing erectile dysfunction - Viagra (Sildenafil), Cialis (Tadalafil) and Levitra (Vardenafil) - are nearly the same with respect to pharmaceutics. At the same time manufacturers of each drug strive to persuade the audience that it is better than others. The most popular of these drugs is likely to be defined by the luck of advertising drives rather than health parameters. To buy Viagra online please search on the Internet. One may as well buy Cialis online there.
All these medicaments are the elements of the series of drugs named phosphodiesterase type 5 inhibitors. PDE-5 is the enzyme which suppresses the expansion of veins of the penis, and thus - enfeebles erection. The composition and qualities of Viagra and Levitra are quite similar. The composition of Cialis is a little different.
But Levitra is quickly absorbed and Cialis is slowly got out of the body, and that is the major distinction between the drug preparations in fact. That is the influence of all FDE-5 blockers is practically similar but different in term and duration of action.
In approximately 80 percent of cases all three medicaments engage the target.
But Levitra is efficient in rather low dosage. The dosage is 5-10 times smaller than those of the opponents. This a little diminishes the strength of side-effects, but with disorders of cardiovascular system and after the stroke medicament is still contraindicated.
And some more news on ill-effects: all 3 drugs, except the “required” FDE-5 enzyme, also block the others. For instance, the FDE-6 enzyme, answerable for color sense, is affected by Viagra and Levitra. The action of FDE-11 in the heart, cerebrum, or thymus gland, is suppressed by Cialis. But what precise unsuitable outcomes it may cause has not yet been determined.
One more interesting point is the interplay of these drug preparations with nourishment and alcohol. It's known that if to take Viagra on an empty stomach it would produce a much faster effect than taken with a meal. But at all events the effect still happens although slowly. The promotional booklets of Cialis assure that it doesn't interact with alcohol, unlike the opponents. In fact, there's information about Levitra being also safe in conjunction with alcohol drinks. But marketeers are in no haste to bring this “trump card” and urge all to buy Levitra. Maybe because the “trump card” is doubtful: alcohol abuse is one of the widespread causes of impotence.