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Viagra pills

Viagra pills are a pharmacological group of drugs used to treat erectile dysfunction in men. The drug does not affect erectile dysfunction of mental central origin.

Release form and composition

The drug Viagra is available in the form of coated tablets. One tablet contains the main active ingredient sildenafil (in the form of citrate) in several dosages - 25, 50 and 100 mg. Also included in the tablet are auxiliary components:

  • Magnesium stearate.
  • Microcrystalline cellulose.
  • Anhydrous calcium phosphate.
  • Croscarmelose sodium.

The tablets are packaged in blisters of 1, 2, 4 and 12 pieces. The carton pack contains one blister with the appropriate number of tablets and instructions for use of the drug.

pharmachologic effect

Viagra has the main active ingredient of tablets on the development of an erection in a man during the onset of sexual arousal, due to increased blood flow to the cavernous bodies of the penis. Sildenafil inhibits the enzyme cAMP-specific phosphodiesterase type 5 (PDE5). This leads to an increase in the concentration of cAMP (cyclic adenosine monophosphate), which causes relaxation of the smooth muscles of the blood vessel walls and cavernous bodies of the penis and enhances their blood filling, leading to erection. Also, upon local excitation, nitric oxide (NO) is produced, which stimulates an increase in cAMP concentration. It is believed that the active substance of Viagra tablets enhances the action of nitric oxide. The main condition for the effect of the use of this drug is the presence of sexual stimulation of a man and his arousal.

After ingestion of Viagra pills, sildenafil is rapidly absorbed from the lumen of the small intestine into the blood. His therapeutic concentration is reached within half an hour after taking the pill, the maximum concentration - after 1 hour. When taking the pill inside after a meal, the absorption rate is slightly lower than on an empty stomach. Sildenafil is evenly distributed in all tissues. Its metabolism occurs to hepatocytes (liver cells) with the formation of intermediate decay products, which are eliminated from the body with feces (up to 90%). The half-life (the time during which half of the entire dose of the drug is excreted from the body) is 4 hours.

Indications for use

The main indication for the use of Viagra pills is the correction of male sexual erectile dysfunction, until a penis erection is sufficient for sexual intercourse. An important condition for achieving a result is that a man has sexual arousal.

Contraindications

The use of Viagra tablets is contraindicated in certain pathological conditions of the body, which include:

  • Individual intolerance or hypersensitivity to sildenafil or auxiliary components of the drug.
  • The simultaneous use of Viagra tablets and other drugs that are nitric oxide donors, which can potentiate the hypotensive effect and lead to a significant reduction in systemic blood pressure.
  • Conditions in the body of a man in which unwanted sexual activity - severe cardiovascular pathology, coronary heart disease, stable or unstable angina , the presence of acute or chronic heart failure.
  • Loss of vision in one eye due to non-ischemic neuropathy of the optic nerve, regardless of the connection of this pathology with the previous use of drugs or compounds that are inhibitors of the enzyme PDE5.
  • the presence of diseases of the cardiovascular system, which are accompanied by a decrease in systemic arterial pressure (hypotension).
  • Concomitant hepatic or renal failure.
  • Hereditary degenerative pathology of the retina.
  • A recent myocardial infarction or cerebral stroke.

The presence of contraindications must be determined before use.


Dosage and administration

Viagra tablets are taken orally, regardless of the meal (fasting bioavailability and absorption rate of the active substance of the drug from the intestine above). The pill must be taken immediately after removal from the blister, since its prolonged exposure to air can reduce the concentration and activity of sildenafil. Also during the reception, it is recommended to hold the tablet for some time in the oral cavity until it softens, and then swallow it, for better passage of the tablet through the esophagus, it can be washed down with a small amount of liquid. The recommended dose is 50 mg, if necessary, it can be increased to 100 mg. The maximum daily dose is 100 mg at a time. To achieve a qualitative effect, the Viagra pill must be taken 1 hour before the intended sexual activity. In the case of liver failure, the dose of the drug taken is reduced to 25 mg.

Side effects

After taking Viagra tablets, side effects may develop, the frequency of occurrence of which depends on the dosage. Such negative reactions can develop on the part of various organs and systems, these include:

  • The digestive system - nausea, vomiting, abdominal pain, unstable stool.
  • Central nervous system - dizziness, insomnia, increased muscle tone.
  • The organs of the respiratory system - nasal congestion, laryngitis (inflammation of the larynx), pharyngitis (inflammatory reaction of the pharyngeal mucosa), dysfunction of external respiration.
  • The urinary system - the development of infectious inflammation of the urinary tract (urethritis, cystitis ).
  • Sense organs - impaired vision in the form of fog before the eyes, a change in color perception, conjunctivitis .
  • Musculoskeletal system - pain in muscles and joints.
  • The reproductive system - a violation of the functional activity of the prostate gland, prolonged erection, which can last up to an hour (priapism).
  • Allergic reactions - develop quite rarely, appear a rash on the skin, its itching or urticaria (blister rash, resembling a stinging nettle).

In the case of side effects, the drug should be stopped and seek medical help.

special instructions

Before starting the use of Viagra pills, it is necessary to carefully read the instructions, there are several specific instructions for taking this drug:

  • Viagra tablets should be used with caution in men who have anatomical defects of the penis, which can be clearly manifested during his erection (Peyronie's disease, angulation, connective fibrosis of the cavernous bodies).
  • The use of the drug is not recommended for people with a predisposition to priapism (prolonged erection) on the background of sickle cell anemia, leukemia, multiple myeloma.
  • For a good result after taking the drug requires sexual stimulation.
  • The use of Viagra pills is excluded for men who are contraindicated for sexual activity, especially due to the pathology of the cardiovascular system.
  • The drug is not indicated for use in women.
  • Do not take Viagra pills for children and teenagers under 18 years old.
  • You can not use the drug during the execution of work that requires high concentration of attention or speed of psychomotor reactions.

In the pharmacy network, Viagra tablets are sold without a prescription. If you have questions or doubts about the use of the drug, you should consult with your doctor.


Overdose

When the recommended therapeutic dose of Viagra tablets is exceeded, symptoms of side effects from various organs and systems develop. The higher the degree of overdose, the more pronounced its symptoms. In such cases, gastric lavage, intestinal and symptomatic therapy.

Viagra counterparts

Analogs of Viagra tablets for the active substance are Konegra, Cialis, Levitra.

Terms and conditions of storage

The shelf life of Viagra tablets from the time of manufacture is 5 years. The drug must be stored in a dry, dark place inaccessible to children at an air temperature not higher than + 25 ° C.

Viagra pills Price

The cost of Viagra tablets depends on their dosage and the number of tablets in the package:

  • 25 mg, 1 tablet - 584-631 rubles.
  • 25 mg, 4 tablets - 2395-2403 rubles.
  • 50 mg, 1 tablet - 621-716 rubles.
  • 50 mg, 2 tablets - 1197-1303 rubles.
  • 50 mg, 4 tablets - 2112-2266 rubles.
  • 100 mg, 1 tablet - 842-874 rubles.
  • 100 mg, 2 tablets - 1350-1524 rubles.
  • 100 mg, 4 tablets - 2455-2612 rubles.
Rate Viagra on a 5-point scale:
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Reviews of Viagra:

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  • | Eugene | 27th October 2015

    Viagra is prohibitively expensive. The blessing now is a heap of analogs with more favorable price. He studied everything and settled on vizarsin: a bargain price, ordinary white pills, soft action and no side effects. Very satisfied and recommend to everyone!

  • | Maxim | November 14, 2015

    I sat on Viagra for a year, until, one day, I figured out how much it cost me. Now I take Vizarsin, much more profitable.

  • | Vyacheslav | November 15, 2015

    Previously, Viagra drank, switched to Vizarsin - it is much more profitable, but the effect is the same. I have never understood why it is on Viagra that such prices break up, and I still don’t understand)

  • | Maxim Sedoy | November 16, 2015

    Viagra name is too much to the ear, the tablet is noticeable, blue. And I am a gray cardinal, I have a white Vizarsin pill in my pocket, so even with a lady I can drink, it seems like from allergies)

  • | Nikolay | November 16, 2015

    Look, all Vizarsin praise. And I used the usual Viagra much more like it!

  • | Alexander | November 16, 2015

    And how much is this Vizarsin? Never heard of him at all. He took Viagra and Impaza.

Leave your feedback


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