VIAGRA instructions for use, description of the drug VIAGRA: contraindications, side effects, dosages, composition - tablets, coating. shell in the reference book of medicines

The article is for informational purposes only; consultation with a doctor is recommended before use.

The drug Viagra is widely advertised in the media, but not all men understand its effect on the body. Some consider it a stimulant and enhancer of sexual desire, while others believe that it solves the problem of impotence.

In the article we will learn everything you need about Viagra tablets: reviews from men for one-time use, instructions, action and price.

The history of the creation of Viagra

The name “Viagra” is translated as the power of Niagara (meaning the famous waterfall in Africa). The history of the creation of this drug is a combination of a chain of accidents and the highest professionalism of scientists.

In 1992, the famous pharmaceutical company Pfizer conducted research on a new substance - sildenafil citrate - for the treatment of diseases of the circulatory system. It was assumed that it would help lower blood pressure (BP) and increase the flow of arterial blood to the heart muscle, which would have a positive effect on the condition of patients suffering from coronary heart disease with frequent attacks of angina.

But at the stage of clinical trials, it was found that the drug did not live up to expectations: it did not have any significant effect on the myocardium. The studies were about to be curtailed, but it turned out that many men participating in the clinical trials refused to return the remaining pills, since after taking them an effective effect on erection developed.

Tests of the drug Viagra for men were continued and the company did not fail, as it earned billions of dollars from this, and the scientists involved in its creation received the Nobel Prize.

Effect on conception

The drug has no effect on the process of conception

The drug has no direct effect on conception. However, frequent erections can lead to decreased sperm motility, making it impossible to conceive. Viagra does not have reproductive toxicity. You should consult your doctor about the advisability of using this remedy when planning to conceive, especially for couples over 40 years of age.

Release form, dosage, composition, manufacturer

Viagra – tablets in dosages of 25, 50 and 100 mg. Convex, diamond-shaped, blue, have rounded edges, the inscription “Pfizer” on one surface, “VGR 100” (25, 50) on the opposite. One package contains 1, 2, 4, 12 pcs. Shelf life: 5 years. Dispensed with a doctor's prescription.

Viagra tablets are labeled "Pfizer" on one surface and "VGR 100" on the other.

Composition of Viagra:

active substance – sildenafil;
excipients that improve its absorption.

The manufacturer of Viagra is the pharmaceutical company Pfizer (USA). All the company's products are of the highest quality.

Shampoos and hair masks

It would seem that hair is less sensitive than the skin of the face and body, but this does not mean that curl products can be stored for several years without losing their properties. But lack of effectiveness is not the only reason why you should be careful when storing such cosmetics.

Among the consequences of using expired shampoo and other hair products:

the appearance of dandruff;
weakening of the rod and bulbs;
the appearance of itching.

Obviously, such a reaction is characteristic of allergies, which is not surprising, because the chemical reaction changes the composition of the cosmetic product, and this in turn changes its effect on the curls.

It is believed that natural products most often spoil.

This is due to the shorter shelf life. But using expired shampoos or masks with a completely synthetic composition will also not have a positive effect on your hair.

Contraindications

Viagra has a great effect on potency, but has many contraindications:

circulatory and liver diseases with dysfunction of the affected organs;
optic neuritis, inflammation of the choroid;
regular use of nitroglycerin or any other drugs from the nitrate group - they evade the blood pressure-lowering effect of sildenafil, which can lead to fainting;
regular use of the drugs riociguat (Adenpas - a drug for lowering blood pressure), ritonavir (an antiviral drug for the treatment of HIV infection);
combination therapy with any other drugs to improve erection;
natural intolerance to simple carbohydrates - they are included in the drug as excipients;
age under 18 years;
individual intolerance to the components of the tablets by the patient’s body.

The medicine requires careful administration if the patient:

deformation of the penis;
some blood diseases accompanied by a symptom such as priapism (prolonged, several hours, painful erection);
increased bleeding;
exacerbation of peptic ulcer of the stomach and duodenum;
severe kidney disease with dysfunction of this organ.

Side effects

Viagra for men has side effects, but is well tolerated by patients of any age without severe concomitant diseases. But the Pfizer company conscientiously lists all possible side effects in the instructions for use. Their list is significant. It was also noted that with a one-time (single) or first dose of the drug, the side effect on the body is more pronounced, with long-term use it weakens or disappears completely. Types of side effects:

"Rushes" of blood to the face and upper body (do not last long, go away on their own), decreased blood pressure, attacks of increased heart rate, increased frequency of angina attacks (acute short-term pain in the heart), impaired cardiac conduction (heart block - changes on the ECG), formation of blood clots in blood vessels, heart failure. Sudden death from cardiac arrest cannot be ruled out.
Headache (including migraine attacks with a sharp dilation of cerebral vessels), dizziness, gait disturbances, increased muscle tone, discomfort and pain along the peripheral nerves, trembling of the limbs, insomnia, decreased mood, convulsive twitching, fainting.
From the senses:
Hearing – pain and noise in the ears, short-term hearing loss.
Indigestion, nausea, heartburn, vomiting, abdominal pain, dry mouth and ulcers, liver dysfunction (do not last long).
Exacerbation of diabetes symptoms, thirst, swelling.
Exacerbation of chronic inflammatory and allergic diseases of the upper and lower respiratory tract.
Anemia, decreased number of leukocytes and cellular immunity.
Inflammatory processes in the urinary tract, urinary incontinence;
Disorders of ejaculation and orgasm, blood in semen, prolonged (several hours) painful erection.
Back and joint pain, inflammatory and metabolic joint processes.
Various types of rashes, inflammatory and allergic processes, high photosensitivity.

Possible complications

The possibility of side effects is affected by the dosage of the medicine. Investigating the possible harm of Viagra, doctors identified a number of side effects:

Redness of the skin associated with increased blood circulation.
Headache.
Visual impairment (increased sensitivity to bright light, blurred vision, etc.).

Candidate of Medical Sciences Elena Ivanovna Adamenko will talk about what dyspepsia is:

Dizziness.
Increased heart rate.
Dyspepsia.

Nasal congestion.
Cramps.
Arrhythmia.

Arrhythmia is any disturbance in the regularity or frequency of the normal heart rhythm or in the electrical conduction of the heart.

Nose bleed.
Fainting.
A sharp decrease in blood pressure.

Effect of the drug

Physiological mechanism of erection development.
Normally, the natural physiological mechanism for the development of an erection works like a clock. The process begins with stimulation in the cerebral cortex under the influence of any sexual factors (visual, auditory, tactile, olfactory). Excitation is transmitted to the erection centers of the spinal cord located in the sacral region, and from there along the nerve endings located in the inner lining (endothelium) of the cavernous vessels of the penis.

This stimulates endothelial cells to secrete nitric oxide. The latter penetrates the cells and stimulates the secretion of cyclic guanosine monophosphate (cGMP), causing rapid dilation of small arteries, blood flow to the penis, compression of small veins and impaired blood outflow, leading to the development of a natural physiological reaction of erection.

The instructions for Viagra tablets for men describe the effect of this drug in detail. Sildenafil inhibits phosphodiesterase-5 (PDE5), causing the release of additional (about 50%) amounts of nitric oxide and cGMP. This contributes to the rapid expansion of small arteries, a rush of blood, its accumulation in the renis, compression of the veins, impaired blood outflow and the development of a persistent, long-lasting erection.

The therapeutic effect of Viagra tablets allows for full sexual contact.

The effect of Viagra - pharmacokinetics

After taking the tablet orally, it is quickly absorbed in the intestines and enters the bloodstream and acts on PDE-5, half suppressing its effect. The effect of the medicine is 60 minutes after administration. Individually – from 30 to 120 minutes. The speed of absorption may be affected by the consumption of fatty foods.

Sildenafil decomposes in the liver, while some metabolites retain the ability to inhibit PDE-5. The effect of the drug lasts from 4 to 6 hours.

In healthy elderly men, sildenafil is eliminated more slowly, which is not a contraindication for prescribing the drug. Its elimination occurs much more slowly in renal failure.

What does a man feel?

Experts learned from their stories how Viagra works on men. In most patients, Viagra simply causes an erection, almost indistinguishable from physiological one an hour after administration. But since before this the man had problems with erection, he feels a rise in mood, a feeling of vigor and a surge of masculine strength.

The effect of Viagra on a man is individual. After the first dose, some people note a rush of blood to the face and slight dizziness (this is associated with a decrease in blood pressure). Even less common are headaches. Sexual intercourse proceeds without misfires.

Drug interactions

In the case of simultaneous use of other drugs, it is necessary to take into account their possible interaction.

The metabolism of sildenafil occurs in the liver, so the clearance of sildenafil is directly dependent on drugs that affect the isoenzymes CYP3A4 and CYP2C9.

Concomitant use of ketoconazole, cimetidine, erythromycin and other CYP3A4 inhibitors reduces the clearance of sildenafil.

Viagra is well tolerated with strong CYP3A4 inhibitors, provided that it is taken in recommended doses.

The pharmacokinetics of sildenafil are not affected by: tolbutamide, warfarin and other inhibitors of the CYP2C9 isoenzyme; angiotensin-converting enzyme inhibitors; tricyclic antidepressants; selective serotonin reuptake inhibitors; thiazides and thiazide-like diuretics; calcium antagonists; azithromycin; combined antacids.

Sildenafil at a dose of 50 mg does not cause an additional increase in bleeding time when taking acetylsalicylic acid at a dose of 150 mg.

Viagra should not be taken simultaneously with nitrates or nitric oxide donors, as sildenafil enhances their hypotensive effect.

The simultaneous use of antihypertensive drugs does not cause side effects.

At the recommended dose (50 mg), sildenafil does not enhance the hypotensive effect of ethanol.

Instructions - how to take Viagra

Viagra packaging, manufacturer: Pfizer.
Pfizer has developed detailed instructions for using Viagra tablets for men.

Basic admission rules

Viagra tablets are taken orally, no more than once a day in an individually selected dosage 60 minutes before sexual intercourse. The first time taking the drug begins with 50 mg, if it is well tolerated and effective (if it sufficiently affects potency), the dose remains the same.

The patient's body may react differently to the drug. The doctor checks with the patient whether the dosage is sufficient to develop a full erection, after which he may increase or decrease the single dose. Patients with severe liver or kidney damage require dosage reduction.

The patient's age is not taken into account when choosing a dose.

Sometimes, as prescribed by a doctor, it is allowed to take Viagra while taking medications that are incompatible with it, such as riociguat (Adenpas) and ritonavir. In this case, the dose is reduced to 25 mg and an interval between doses of 48 hours or more is maintained.

If the patient is constantly taking medications to lower blood pressure, the use of Viagra can only be started under the supervision of a physician after complete normalization of blood pressure, having selected the minimum effective dosage.

Can a healthy man take pills?

When taking Viagra, you must strictly follow the instructions.
Some healthy men seek to take Viagra to reduce the intervals between sexual intercourse. They are really shrinking. But if a man is healthy and takes sildenafil on his own initiative without a doctor’s prescription, this is dangerous, he may encounter the following problems:

with all the listed side effects of the drug;
with a very prolonged painful erection (priapism), developing against the background of excessive stimulation of sexual capabilities, which is very difficult to get rid of.

Alcohol compatibility

It is better not to drink any medications with alcohol, as it interferes with their absorption in the stomach and reduces their effectiveness. Alcohol also dilates arteries and lowers blood pressure - it acts like sildenafil.

The instructions for use indicate that the amount of alcohol taken should be taken into account. Thus, a dose of Viagra of 50 mg does not enhance the vasodilatory and blood pressure-lowering effects of alcohol if its level in the blood does not exceed 80 mg/dl. This means that there will be no harm if a man drinks one permissible dose of alcohol - a little beer or wine.

But even if he drinks a small amount of alcohol, which can lead to a decrease in the effectiveness of the drug, taking an additional dose, overdosing and increasing the risk of serious side effects. So everyone decides for themselves whether the medicine is compatible with alcohol and whether it is worth using.

Benefits and harms of long-term use

If there are no contraindications for taking Viagra, it can and is even recommended to be taken for a long time. It has been established that when taken for 16 weeks or more, the side effects that bothered the patient in the first days of use almost completely disappear.

Overdose

An overdose increases the risk of side effects, and these are significant with this drug. Therefore, it is not worth the risk; Viagra for potency is best taken in the dosage prescribed by your doctor. If for some reason 200 mg of medication or more was taken, it would be correct to rinse the stomach.

How to take Viagra for men correctly and the duration of use is determined by the doctor. Taking medicine without a doctor’s prescription, increasing the dose on your own, combining it with other incompatible medications and large doses of alcohol means risking your life and health. Such a technique will not bring benefit, but harm.

Only correct use of the drug will provide a man with decent potency.

Why is this dangerous for the skin?

As a rule, no one thinks about why it is rare to find a real expiration date on cosmetic packaging.

According to the legislation of different countries, the expiration date on cosmetic products is indicated only when it is less than 2.5 years. For example, these are face skin creams - high-quality compositions are usually stored for up to one and a half years, or even much less. Products such as mascara, hair shampoo, and lipstick usually do not indicate deadlines at all.

And then, after a few years, the owner of such cosmetics has a completely logical question: why there is no effect from their use. But reduced efficiency is not the only disadvantage of using expired funds.

First of all, cosmetics are a chemical product. Such products sooner or later change their composition - they oxidize, react with air and other media.

The result is the same: the product loses its effectiveness, and most often becomes hazardous to health, which immediately affects the condition of the epidermis. The skin is one of the most sensitive organs of the human body, so it is not surprising that when using expired products, it reacts sensitively to the composition of any product.

The greatest danger is caused by bacteria, which tend to accumulate in open jars, where every woman dips her fingers, in containers with eye shadow and powder, on lipstick, where all kinds of microbes get from the lips. In addition, cosmetics that a woman might have used during illnesses—conjunctivitis or herpes—become a “carrier” of infection, because the causative agents of such ailments do not die upon contact with air.

Different products attract microorganisms in different ways, but they all pose a danger to humans.

These are both micromites and staphylococcus. All such pathogens lead to the development of various and very unpleasant diseases.

Viagra analogues for men

Viagra is the original drug of the American pharmaceutical company Pfizer. Throughout the entire period of its patent, the company had no competitors, but after the patent expired, other companies began to produce similar drugs with the same active ingredient, capable of replacing Viagra, under their own trade names.

Such substitutes are usually called generics. Externally, many tablets look almost like the original drug and are no different from it, except for the trade name and price (it is much lower). Their effect lasts 4–6 hours; generics are taken no more than once a day. Under the trade name of the original drug and all pharmaceutical generics there is an international nonproprietary name (INN) - sildenafil. This is the active ingredient of the drug.

New original drugs of the IPDE-5 group were also produced, the most famous of which are Cialis and Levitra. They are also analogues of Viagra, but have other active ingredients and their own characteristics.

TOP 3 best analogues

The most well-known substitutes for Viagra with a similar effect include the original drugs Cialis and Levitra, as well as the generic Viagra Dynamic.

Cialis

One of the most famous analogues of Viagra is the drug Cialis.
Cialis is the original drug of the IFED-5 group of pharmaceutical companies Eli Lilly, USA. The active ingredient is tadalafil. Available in film-coated tablets of 2.5, 5 and 20 mg. In packs of 1, 2, 4, 8, 14 and 28 tablets. The effect of the drug begins in 15 - 30 minutes and lasts 36 hours. Package price (4 tablets, 20 mg each) RUB 3,795.

Which is better, Cialis or Viagra?

Both drugs have their advantages and disadvantages. Viagra has many side effects and contraindications, so it is more suitable for men who do not have severe concomitant diseases and who need a more pronounced therapeutic effect. The drug's onset of action is slower than that of Cialis and its duration is shorter.

Cialis acts more gently, has fewer contraindications and side effects, but its therapeutic effect is less pronounced. Therefore, it is suitable for the elderly and those who suffer from concomitant pathologies.

Levitra

Levitra is also available in tablets.
Levitra is the original drug of the IPDE-5 group of the pharmaceutical company Bayer, Germany. The active ingredient is vardenafil. Available in film-coated tablets of 5, 10 and 20 mg. In packs of 1, 4 and 20 tablets. The effect of the drug begins after 15 - 60 minutes and lasts 8 - 12 hours. Package price (4 tablets, 20 mg each) RUB 4,090.

Which is better, Levitra or Viagra?

Levitra has fewer side effects than Viagra, it acts more mildly and lasts longer. Its action begins individually after 15 – 60 minutes. The therapeutic effect of Viagra is more intense.

Dynamico

According to reviews, Dynamico works no worse than Viagra.
Dynamico is the best generic Viagra from the pharmaceutical company Teva, Israel with the active ingredient sildenafil. Works just as well as the original, but much cheaper. Price 4 tablets of 100 mg – 900 rubles.

Which is better, Dynamic or Viagra?

Viagra is the original drug, so it is considered the best. But in terms of quality and efficiency, Dynamico is in no way inferior to it.

Cheap analogues of Viagra

Inexpensive analogues of Viagra for men include Erexesil, Vizarsin and Viagra soft.

Erexesil

Erexesil is an inexpensive generic.
Erexesil is a generic version of Viagra from the pharmaceutical company EGIS Pharmaceuticals, PLC, Hungary with the active ingredient sildenafil. The generic is high-quality and inexpensive, and may well replace Viagra. Price 4 tablets of 100 mg – 800 rubles.

Vizarsin

Vizarsin is produced by the KRKA company.
Vizarsin is also a high-quality, inexpensive generic Viagra from the pharmaceutical company KRKA, Slovenia with the active ingredient sildenafil. Available in film-coated tablets in the same dosages as the original. Price 4 tablets of 100 mg no more than 650 rubles.

Viagra soft

This is what Viagra soft tablets look like.
Viagra soft is the cheapest generic Viagra from the pharmaceutical company Centurion Lab, India. Film-coated tablets with the active ingredient sildenafil. 10 tables 100 mg each cost 100 rubles.

Russian analogues of Viagra

Viagra substitutes are produced by many pharmaceutical companies in Russia. The list of the best products for men's health includes Vildegra, Sildenafil, Sildenafil-SZ.

Vildegra

Vildegra tablets are produced by the pharmaceutical company Ozone.
Vildegra is a Russian tablet produced by the Ozone pharmaceutical company with a prolonged release, film-coated with the active ingredient sildenafil and an effect similar to Viagra. Cheap analogue: cost 30 tablets. 100 mg each is a little over 900 rubles.

Sildenafil

The Vertex company produces Sildenafil tablets.
Sildenafil is a Russian generic of Viagra with the active ingredient sildenafil, manufactured by Vertex. Sold at a price of 350 rubles. per pack 10 tablets. 100 mg each.

Sildenafil-SZ

You can replace Viagra with Sildenafil-SZ.
Sildenafil-SZ (NAO Severnaya Zvezda, Russia) is a cheap domestic generic of Viagra with the active ingredient sildenafil, which can replace the original drug. The cost of a package of 14 film-coated tablets, 50 mg each, is a little more than 300 rubles.

If these drugs are not suitable for you, read our article “The best analogues of Viagra.”

What generics can you buy at the pharmacy?

All analogues of Viagra for men in the pharmacy are sold only with a prescription. If at the moment the required medicine is not on sale at the pharmacy and the buyer does not agree to replace it with a similar medicine, it can be ordered and then received in a few days. In Moscow, all you need to do is call tel.

Is it possible to make an analogue of Viagra at home?

On the Internet you can find many methods of preparation and recipes for “homemade Viagra”. But in reality, these are ordinary folk remedies for increasing potency. Our ancestors used them with varying success for centuries. And only with the discovery of effective drugs of the IPDE-5 group did it become possible to radically solve men's problems. It is impossible to replace them with any homemade products.

Another way to prepare “homemade Viagra” is from other tablets. Using such methods is not only useless, but also very dangerous.

Reviews of the drug Viagra

On the Internet you can find many reviews of Viagra pills for men.

Reviews from doctors

Real reviews of Viagra from doctors
All doctors note the high effectiveness of the drug. The disadvantages include its high cost, which increases the risk of running into a fake (counterfeit). All experts believe that you cannot take Viagra on your own, without a doctor’s prescription.

Reviews from men

Real reviews from men about Viagra.
Reviews from men, including those with one-time use of Viagra, are different. All of them note the high effectiveness of the drug. The majority did not have any side effects; some noted nasal congestion and facial redness at the first dose, which did not recur later.

Reviews from older men

Reviews of older men about Viagra.
Men over 50 actively use Viagra. At the same time, they note its greater effectiveness compared to Cialis. Some of them have minor problems with the cardiovascular system, but taking Viagra does not cause any discomfort for them.

Body products

The approach of summer forces many to sort through their “stocks” of sunscreens. At the same time, many are surprised that the expiration date expired literally a year or two from the production date.

In fact, such cosmetics can really become dangerous for the skin: the composition of such creams reacts with the plastic of the packaging and, as a result, changes dramatically. At best, such a remedy will cease to be effective, but great hopes are placed on it when taking the first sunbathing.

It is also important to observe the terms and conditions of storage of other cosmetics: the body and its skin remain susceptible to the changed chemical composition, so allergies occur, immunity deteriorates, pores become clogged and a rash develops.

Frequently asked questions about Viagra

Which drug is better - Sildenafil or Viagra?

This is the same thing: sildenafil is the active ingredient in Viagra and all its analogues.

Is it possible to put Viagra in a man's food?

This should not be done because:

a drug for men Viagra is a prescription drug with side effects and contraindications; taking it can bring not only benefits, but also harm; the doctor takes this into account when prescribing and explains it to the patient; if a man takes Viagra added at home, he may not pay attention to serious side effects;
Viagra acts only against the background of sexual stimulation; if there is none, then there will be no effect; All its generics act similarly.

Do you need a prescription for Viagra?

Yes I need it. This is a prescription drug.

Will half a tablet have any effect?

All drugs with the active ingredient sildenafil are available in tablets of different dosages of 25, 50 and 100 mg. Therefore, there is no point in taking half a tablet, you just need to choose the minimum effective dosage (how much you need to take).

What is sex like when taking Viagra?

Application area

Viagra is available in tablet form. They can be of different colors, mostly blue. The packaging is white or blue and made of paper.

Country of origin: France.
It is used when diseases and difficulties occur in men regarding erectile function.
Dispensed from pharmacies only with a prescription from the attending physician.

Each disease has its own causes and methods of treatment.

Today, Viagra can be purchased at any pharmaceutical outlet. The main thing is to show attention and vigilance when purchasing, and also strictly follow the instructions in the instructions during storage. A person’s health and strength largely depend on himself, and in this case, the effectiveness of treatment!

Sources:

medaboutme.ru
kavkchr.ru
howtostore.ru