Contraindications and side effects of Viagra

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USA

Unfortunately, the influence of Viagra in the human organism does not only extend to the gender system. The side effects of the drug actually determine the contraindications to its regulation.

There are contraindications for Viagra in the following cases:

  • for men under 18 years.
  • with the parallel administration of the nitrates. If the man takes a medicine belonging to this group according to indications, it is forbidden to prescribe the preparation to him.
  • The common intake of the original medicine and generics. This can lead to overdose.
  • Common intake with the analogs, eg with Cialis, Levitra u saw

For some diseases, Viagra should only be taken under strict medical supervision.

The remedy is prescribed with caution in the following pathological conditions:

  • genetically determined pigment retinitis;
  • the product is not used in pregnant women or during lactation;
  • anatomical features of the configuration of the penis;
  • serious dysfunction of the liver;
  • during the period of exacerbation or unstable remission of gastric and duodenal ulcer;
  • Leukoses, myeloma disease, thrombocytopenia;
  • Diseases associated with hemorrhage;
  • The history of acute coronary insufficiency is given.

The doctor determines whether the drug can be prescribed or not. He decides on the basis of the analysis of the general state of health of the man as well as with regard to the parallel drug treatment and the existing diseases.

side effects
All side effects are conditionally divided into several groups. Adverse reactions may be subdivided according to the frequency of their occurrence, which has been recorded during clinical trials:

Very often:

  • Hyperaemia (flushing of the face) by blood rush;
  • A headache.

Frequently:

  • Tachycardia (pulse rate acceleration);
  • Skin eruption;
  • Visual disturbance. The preparation may provoke: appearances of achromatopsia, hypersensitivity to light and nebulized vision;
  • Constipation of the nose;
  • Sleep disorder;
  • An occurrence of dyspepsia.

Occurrence in individual cases:

  • Redness (injection) of the eyeball;
  • On the part of the cardiovascular system, the following symptoms have been noted: tachyarrhythmia, collapse (significant lowering of the arterial blood pressure) and fainting;
  • Dysfunction of the gland;
  • Nosebleeds.

Side effects of using Viagra include a painful erection that can last for more than 4 hours.

The potency problems have a negative effect on the psychological health of the man. You can use Viagra without delay for the purpose of eliminating impotence and strengthening the erection, unless the doctor has identified any contraindications to the use of the preparation.

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