The penis is swollen in size but has not yet reached the stage of complete firmness.

The penis has become quite hard, but unfortunately the erection is free enough to refer to successful penetration.

The penis is strong enough to start the sexual act, but the erection is not yet complete.

The penis is completely erect, it is solid enough and ready for penetration.

It is very curious that stages 3 and 4 (ie, erection sufficient to perform effective penetration) are achieved in over 80% of men suffering from erection disorders after taking a dose of 100 mg Viagra.

Effect of Viagra

The results of the clinical investigations on Viagra show the rather ambiguous and contradictory results that refer to the moment of beginning of the preparation activity. In the first case the effectiveness of Viagra appears only two hours after administration with food, another investigation shows the results of the instant case: about 15 minutes after a pill containing 100 mg of the active ingredient with a glass was ingested hot water

In practice, this specific remedy begins to function approximately within 30 to 60 minutes of ingestion. How long does Viagra last in the body? As we have already said, in the case of Viagra the duration is just over 4 hours. The active ingredient in Viagra is sildenafil citrate which is easily absorbed into the blood. For example, a pill with 100 mg of the active substance reaches its maximum concentration in the blood within half an hour or a full hour.

But when taking Viagra is accompanied by heavy or high fat food, the absorption period is automatically increased by another half hour. Remember that the drug should be swallowed with plenty of water.

The initial dose should be started with 50 mg, ie half of the usual pill, but not earlier than 45 minutes before the supposed sexual intercourse. Taking into account the individual peculiarities of the organism and health in general, the dose can be increased to 100 mg or reduced to 25 mg. That’s why it would be better to consult your doctor to choose the most convenient dosage. A dose of Viagra is not allowed more than once a day.

Who should not take this medicine?

It is a rigorous recommendation that Viagra or sildenafil-containing medicines should not be taken if a man suffers or wants to treat the following diseases:

  • anatomical disorders of the penis;
  • angulation processes;
  • venous fibrosis;
  • peyronie’s disease;
  • myeloma of varying degrees;
  • blood cancer;
  • stomach ulcer or intestinal tract;
  • angina pectoris or heart failure;

History of stroke or infarction, arterial pressure instability. As can be seen, the duration and quality of the action of Viagra are defined by a fact as the human body reacts in the components of Viagra. It is very important to follow the diet with the intake of the drug because they are two interdependent factors. Another very important detail is the overdose of the drug that can never prolong sexual pleasure, but vice versa can cause very negative consequences both for the body and for intimate relationships.