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All truth about Viagra

Description, Medical Information

All truth about Viagra

Sildenafil, which appeared on the market in the late 90s, is the first really effective drug that has helped solve the problem of erectile dysfunction to large number of men. According to statistics, about 150 million men from 18 years and older suffer from problems in sexual life and urination due to the disorder of blood circulation in the pelvic. One of the most popular and effective drugs for symptomatic treatment is Viagra. Today there are not less popular counterparts, and namely, German Levitra, American Cialis and other, but nevertheless, sildenafil keeps its position. Thanks to a big advertising campaign and truly innovative features, the drug is known all over the world.

Its high efficiency is specified by an incidental finding and synthesizing the compound – sildenafil – which acts selectively only for a particular process in the smooth muscle. In order to understand how Viagra works the mechanism of erection appearance and preventing factors should be examined.

Pharmacological action of Viagra

What is the process of erection? It is basis is hemodynamics or blood flow through the vessels in an area of low pressure. Smooth muscle of the cavernous body should be relaxed, nitric oxide is released in the body at the sexual arouse, more and more blood rushes to the penis, it swells and this is a natural reaction to the stimulation. But if the walls of the vessels resist the movement, the blood becomes more viscous, the difficulties arise and the process stops. The matter is that while the release of nitric oxide an enzyme that breaks down cGMP, a nucleotide in the RNA composition also begins to "work". And nitric oxide has no time to release in a sufficient amount; the enzyme continues to interfere with the rush of the blood. Viagra stops it. Thus during the arousal no physiological process does not prevent to occur the natural and normal erection.

Sildenafil acts solely in relation to this enzyme – phosphodiesterase-5. Other isoenzymes it influences ten times less, i.e., does not compromise load to the heart, brain and other major organs. Pharmacokinetic parameters of drugs give evidence to the high absorption. In average, it is needed about an hour to reach a peak content of sildenafil. The time for intimacy should be planned in these time frames.

The preparation does not influence the indicators of sperm quality, within two hours after administration the admission to the semen contains less than 0, 0002% of the dose. Participation in metabolism: sildenafil is metabolized in the liver and excreted mainly by an intestine.

Advantages of Viagra

1. The drug helps to strengthen and maintain erectile function. It does not treat, but only improves the blood supply.

2. Increases the duration of sexual intercourse and speeds up the recovery period.

3. Increases blood flow in the genitourinary system, which is useful for all of the pelvic organs and helps cure some diseases.

4. Practically does not have side effects at all the positive effects for sexual life.

5. Overdosing does not lead to dangerous health results (on condition that the patient is not at risk group for cardiovascular diseases or renal and liver failure).

6. Can be used at any age from 18 years.

7. Not addictive.

8. Allows to get rid of impotence even in complex cases.

9. Does not affect the quality of the semen and may be taken before planned conception.

Viagra 25 mg

Viagra 25 mg is a new medicine that can sensibly solve men's problems. A huge number of satisfied customers prove that this drug is effective. The most important distinguishing feature is that it is ideal for older people because the maximum dosage does not exceed 25 mg. Note that when taken even by older people, an erection will occur without causing serious damage to the health.

Viagra 50 mg

It should be used half an hour before planned intercourse. It is undesirable to increase the dose of 50 mg, however, if you do not observe the intended result, you can increase the dose to seventy-five or one hundred mg, but not more than daily dosage (100 mg). With a critical dosage increase, side effects may occur.

Optimal dosage of the drug is fifty mg, which is universal and suitable for all men. In addition, the drug is offered at a generally available cost, and affordable pricing makes it even more popular.

Viagra 100 mg

The most significant advantage of the drug is that the use of Sildenafil helps to cope with the problem of sexual dysfunction, even under difficult circumstances. It also works well in difficult situations, such as accompanying diabetes, spinal injuries experienced in the past, or prostate surgery.

It should be noted that the preferred dose of this drug is 50 mg in a period of 24 hours. In addition, one of the most important conditions for effective impact is the presence of sexual arousal towards the sexual partner.

Viagra 150 mg

Viagra 150 mg has passed all clinical trials and in laboratory conditions, its effectiveness and positive effects on the sexual health of men has been proven. The drug guarantees a long and high-quality erection. Sildenafil has a fairly high price, but this is due, firstly, to the sufficient popularity of the drug, and secondly, to the cost of the patent. Nevertheless, there is a more budget-friendly version, an analogue of the drug — Generic Sildenafil 150 mg. It has a similar chemical composition and also has passed all clinical trials.

Viagra 200 mg

If there is a need to constantly take the drug in small dosages, it is recommended to opt for a dose of 200 mg. This will allow to save on the purchase. Sildenafil 200mg is prescribed, if there are serious disorders in the intimate sphere of a man’s health, therefore, it is not recommended to use a large dose with minor problems.

Viagra professional

Sildenafil Professional has a dosage of 100 mg. When used, the drug carries out gentle actions in the natural processes of male erection, providing a quality erection. Unlike the original Sildenafil 50 mg, double dosage of Sildenafil Professional lasts much longer (up to eight hours), thanks to which, the drug remains the main choice of many men who want to effectively fight erectile dysfunction.

Viagra soft

Sildenafil Soft - a unique drug to improve potency. Available in the form of tablets for sucking with a pleasant taste. It leads to an appearance of erection in 15-20 minutes (when taking pills, you need to wait 40-50 minutes). The effect duration of the tablet reaches 6 hours. A man gets a stable erection in the presence of sexual arousal.

Viagra super active

Sildenafil Super Active cannot be called an ordinary generic. The formula of this drug is not just changed but improved. It includes Sildenafil (the main active ingredient) and a complex of medicinal herbs (synergists of the main component). Standard dosage of 100 mg allows you to achieve the maximum effect from taking the drug. A man gets a powerful erection and can expect a longer sexual contact.

Buy Viagra Online:

Some pharmacies sell Viagra online after an online consultation. Some pharmacies sell Viagra without a prescription, bought from an unlicensed seller, it can be at best fake and ineffective, and at worst harmful. You should go to the pharmacist and ask him to give you a medicine, and the pharmacist should ask a series of questions to make sure it is not harmful to you and answer your questions if any. Buy Viagra online is very simple. Generic Viagra is often sold over the Internet without a prescription, this product can be bought, but with caution. The price of the original Viagra starts from 10 euros per tablet, the generic Viagra can be bought 10 times cheaper.

Calculation of dosage

The drug is taken continuously or once. An urologist prescribes the scheme of the medicine administration. Calculation of dosage depends on many factors. Administration conditions: tablet should be taken at least 30 minutes prior to sexual contact. It should be taken with plenty of water (not cold). The combination with fatty food will worsen the absorption and delay the onset of action of the drug. It is prohibited to take with alcohol and drugs containing organic nitrates.


  • ager under 18 years old
  • women
  • hypersensivity to sildenafil and inactive ingredients
  • regular or periodic use of drugs containing nitrates or nitrites. Co-administration Viagra and these drugs give so strong hypotensive effect that this can lead to heart failure
  • administration of medicines for erectile dysfunction treatment (it is unknown how safe the co-administration of similar types of drugs and also there is a risk of overdose)
  • administration of nitric oxide donators

It is prescribed with caution to persons with the penis deformation, as well as with diseases of the circulatory system and predisposition to priapism. The contradictions for Viagra take are the following diseases: stomach ulcers (among the side effects dyspepsia is noted), acute heart failure, angina, aggravating during sexual intercourse, severe arrhythmia, blood pressure below 90/50 and above 170/100 mm Hg.

Possible adverse effects

Only 10% of patients registered side effects. They are the following: headache, dizziness, face hyperemia, hypertonia, tachycardia, impairment of vision, rhinitis, and dyspepsia.

The combination of Viagra and other medications

It is not recommended to take the tablet in a state of alcoholic inebriation – in this case even a small dose of alcohol can be harmful for blood circulation in the pelvic organs and sildenafil will not have the desired effect. Also, fatty food slows the absorption of the drug and consequently delays the beginning of its action, i.e. instead of 30-60 minutes from the intake Viagra will work only after 120 minutes.