Compare Viagra vs Cialis vs Levitra in Canada

Viagra (sildenafil), Levitra (Vardenafil) and Cialis (Tadalafil) are a new group of drugs the main work of which is to block enzyme - phosphodiesterase, which is found in many tissues and organs of the human body.

Probably, if all of these enzymes are blocked completely and forever - the consequences of such actions would be tragic. Fortunately, all three drugs for the treatment of erectile dysfunction have some impact, selectivity of action and inhibit the work of only 2 or 3 varieties of the enzyme.

Accordingly, here is the main advice to the men: Do not be surprised or discouraged if at some time your eyes have changed the "angle of view." You should not get behind the wheel, trying to draw or make color photographs, to work in the graphic editors, if you took a pill of Viagra or Levitra from Canada drug store. It is better to wait for some time when the excitement subsided, and your eyes again will able to distinguish between all shades of color.

There can be several reasons:

- If you take Viagra, the reason for the failure may be premature or too late onset of sexual intercourse. Viagra is effective only in about 40 minutes after ingestion, and its action is about 4 hours. This is a sufficiently long time to be able to carry out your plan - but will keep an eye on the clock.

- If you take Viagra (sildenafil), after a hearty dinner and several glasses of alcoholic beverages - the pill can’t act at all: alcohol prevents the formation of erection and operation of Viagra. So, it is better to have dinner in an hour after taking the pill, and to refuse from alcohol at all.

- If you took Viagra in time and in compliance with all recommendations - but there is still no effect, it may well be that the dose you took, was not enough for you. Of course, the correct dose should pick your doctor. However, here is a very simple rule: the more you weigh, the higher should be the dose of Viagra. Typically, the minimum dose for adults is calculated on body weight about 70kg. If you weigh 90 or 110 - will have to increase the dose accurately.

Canadian Cialis and especially Levitra have more powerful and pronounced effect than Viagra, but they are available in different dosages, it is important to consider when choosing a drug.