Viagra pills are drugs widely used for curing erectile problems.

They are produced by the large American corporation called Pfizer. Depending on the content of the active ingredient Viagra tablets can be 25, 50 or 100 milligrams.

The form and color of Viagra pills

A diamond shaped and slightly biconcave Viagra pill has cut and rounded edges and blue color. The shape and color of the tablet are an intellectual property of Pfizer pharmaceutical firm. Therefore, these elements cannot be copied. Due to this fact pills like Viagra (its generics) usually, have other form and/or color.
On the one side of the tablet, you’ll see the following markings:
1) “VGR 25” on a pill containing 25 milligrams of the key ingredient of the remedy (i.e. sildenafil);
2) “VGR 50” on a tablet with 50 milligrams of sildenafil;
3) “VGR 100” on a 100-milligram pill.
On the other side of the tablet, you’ll see “Prizer” marking.

Composition

The tablet contains:
1) main active agent (sildenafil);
2) calcium hydrogen phosphate;
3) croscarmellose sodium;
4) magnesium stearate (Mg 2);
5) film coating components – hypromellose (INN), lactose sugar, titanium dioxide, blue dye indigotin etc.
In addition, blue coating film can contain vanillin and/or biotin (a vitamin of B complex)

Taking and duration of effect

How to take Viagra pill? This tablet should be swallowed with a little water. Blue pill Viagra starts its action 20-30 min after taking. But according to health care professionals’ recommendations, many men take the remedy an hour or an hour and a half before coitus. They do this due to the fact that maximum main agent’s concentration in the blood occurs approximately one hour after taking the remedy. This period is reduced if a man has taken a pill of Viagra before meals, and vice versa, the food (especially fatty foods) postpones the onset of the active phase. It may seem strange, but males shouldn’t take the remedy in combination with grapefruit or any grapefruit products (smoothies, juice etc.) because these products can influence the absorption of the active agent of the drug.
Generally, the effect of the remedy lasts several hours (from four to six). When using Viagra sexual partners need to be able to negotiate and plan the sex. Most people plan their sex anyway, so it is unlikely that the drug will lead to radical changes.

Counterindications

The remedy is counter indicated for male persons who:
I) have a peptic ulcer in the acute form;
II) have serious problems with arterial pressure;
III) suffer from some ailments that can lead to priapism (long penile erection which doesn’t disappear for four hours or more);
IV) have idiocracy to active agent or other components contained in the Viagra blue pill;
V) suffered from heart attack or apoplectic attack six months before;
VI) have some heart ailments;
VII) suffer from penis deformations.
Males taking remedies that contain nitrates should not take blue tablets. Active agents of these medicaments form a dangerous combination, which can lead to fatal outcome.