Contraindications and side effects of Viagra

Contraindications and side effects of Viagra

Career, social recognition, physical strength - the main components of male self-confidence. But the first place is occupied by the potency. When in the intimate life of a man there is no problem, then everything else can be easily obtained. If there is a problem, many people try to solve it with the help of sildenafil - the active ingredient of Viagra. But the side effects of Viagra while little known.

Men's potency is based on three components:

• desired or attraction (psychological component);
• erection (physiological component);
• achieving ejaculation.

Potency will wear the perfect character only if all three elements work cohesively. Difficulties in men can occur at any age, at any stage.

The psychological component is the main and most complex: if a man does not feel attracted to women, it is quite difficult to change this fact.

But the physiological side of potency can be easily changed with the help of Viagra.

History of Viagra started in 1992, when the British pharmaceutical firm «Pfizer» worked on the trial of a new drug Sildenafil citrate. An interesting fact is that the company did not originally planned creation of pills to enhance potency. Sildenafil citrate was supposed to be an effective treatment for heart disease and blood vessels.

At the stage of the drug test revealed that Viagra has no effect on the mechanisms of the cardiovascular system - its impact was manifested in another place. The subjects refused to return Viagra, as it miraculously increased the erection in men. Clinical studies have confirmed the efficacy of sildenafil at various erectile dysfunction.

In 1998, Viagra appeared on the market in the form of a blue pill and quickly received positive feedback.

In the short time it gained popularity and has taken a leading position among the preparations improving erection in men.

This magic tool is widely used as a completely healthy people, and suffering from diabetes and other ailments. But, as with any medication, Viagra has its contraindications, side effects.

Contraindications to the use of the drug

Tablets Viagra except high efficiency, and also differ good tolerability. But a number of diseases, the presence of which must be very attentive to the reception of the drug, still exists. All contraindications are mostly limited to diseases of the cardiovascular nature. Full list of warnings like this:

1. Heart failure.
2. Angina.
3. Cardiac ischemia.
4. Heart attack.
5. Stroke.
6. Cerebrovascular accidents.
7. Uncontrolled hypotension.
8. Arterial thrombosis.
9. Leukemia.
10. Myeloma.
11. Cell anemia.
12. Anatomical deformity of the penis.

In studies of the adverse effects of Viagra have been studied data taken in one year. At the 1473 fact negative effects recorded 522 deaths. Of these, the cause of death in 200 people became myocardial infarction, and 94 people have heart stopped during intercourse.

All accidents occurred during the first six hours after taking Viagra. This fact indicates that the drug was in the blood during time of his death.

But the manufacturer of Viagra has never lost in the proceedings, since all the victims suffer from some heart disease.

The cause of death in all cases are heart attacks, and is quite difficult to prove in court than they are caused by: physical exertion during sexual intercourse or by the action of the drug.

Studies have shown that the incidence of heart attacks and heart failure during intercourse using Viagra do not exceed the expected Men older frequency of heart attacks during the same process, but without the use of medications that increase the potency. To protect yourself from unwanted, dangerous to life and health effects, contra-indications should be studied carefully.

Possible side effects

In the early years of the drug on the market of medicines were registered 29 cases of the occurrence of deafness, complaints of tinnitus, dizziness after taking Viagra. Careful study these facts have found a direct link between the use of the drug and the occurrence of side effects.

A little later, doctors began to suspect that sildenafil adversely affects the sense of smell. On this occasion, scientists from Dresden were conducted serious research, published a popular edition of the Medical Journal of Urology in 2007.

The publication provides evidence of the influence of the drug in the circulation of blood in the nose.

Despite these defects drug side effects are minor, transient and not can bring significant harm (except for people suffering from the above diseases).

Basically side effects occur in violation of permissible doses used together with other drugs. The recommended daily dose - 50 mg of material.

Depending on tolerability and the individual characteristics of the human body, the dose can be reduced to 25 mg or increased to 100 mg.

If you do not break the application rate (1 per day) and maximum dose (100 mg), the unwanted feelings are much less common. Without consulting a doctor to experiment with doses of sildenafil is not necessary.

The most frequent side effects: dizziness, headache, redness of the skin, nasal congestion.

It may also be indigestion, minor vision changes (violation of clarity, increased sensitivity to light).

To prevent unwanted "effects" of receiving such funds should not forget compatibility and incompatibility of the drug with other substances ingested: alcohol medicines and food.

Viagra compatible with alcohol, foods and medicines

Acceptable combination with the drug

1. Viagra does not interact with aspirin, their simultaneous use is allowed.
2. Viagra and alcohol compatible.

   But alcohol can adversely affect the erection and the risk of side effects, while use of the drug and alcohol increases.

3. Fatty foods inhibits absorption process of sildenafil in the blood, resulting in action of the drug occurs one hour later.

dangerous Interactions

1. Medical preparations containing nitrate, is prescribed for the treatment of angina (nitroglycerin kardilat, nitrograd et al.).

   The danger of this combination is that it can dramatically lower blood pressure and heart attack.

2. Do not take the blue pill with tsimetedinom, erythromycin, ketoconazole, beta-blockers.

Adhering to these rules for the use of the drug can significantly reduce or even eliminate the occurrence of side effects of Viagra. Although this tool may not give rise to abnormalities in men after prolonged use, not abuse them.

A source: https://kakbik.ru/andrologiya/potentsiya-libido/viagra-protivopokazaniya-pobochnye-effekty.html

Viagra pills for men - harm or benefit health?

Men resort to the use of the drug Viagra to enhance erection and to impress a woman by force of its potency. Thoughts about the dangers and benefits of Viagra in such moments are rare. Although side effects and contraindications of the drug in plenty.

Content

• 1 Benefits
• 2 Hurt
• 3 Side effects
• 4 Contraindications

Benefit

Viagra comes in men after the age of 45, when the first problems begin in the intimate sphere, significantly reduced the concentration of testosterone in the body, evolving genitourinary diseases that inhibit erectile function. The use of Viagra will only symptomatic solution, because with a decrease in hormones need a special hormone therapy.

Due to the drug Viagra vessels male reproductive organ quickly fill with blood. Improving blood flow increases arousal and erection. After the intimacy drug stops the effect of the drug is only effective in a state of sexual arousal.

Tablets especially qualitatively regulate erectile function, if there is a psychological problem. If potency disorders associated with physiological factors, the medicine will not cure the disease, only temporarily eliminate the symptoms, but the problem itself will remain.

Harm

Taking Viagra regularly in high doses can be purchased problems with reproductive function, up to infertility. The drug degrades the quality of semen and sperm motility. Regularly receiving a dose of medication, body gets used, serious dependence develops, which is difficult to eliminate independently.

If there are contraindications such as heart failure, angina, and other diseases, but they are ignored and continue to take the medicine, you could end thrombosis or even fatal outcome. Sometimes there are fatal cases of taking Viagra with serious pathologies of the heart.

The use of tablets (see instructions) Viagra equate to drugs or alcoholic drinks reception. The next day there is a hangover. Prolonged and uncontrolled use sometimes progressing to cirrhosis or gastritis.

It is a potent medication. Take recommended only after prior consultation of the urologist, taking into account the contraindications and side effects. Do not get too often to take Viagra, it negatively affects the entire body a man, not only on the reproductive system.

Side effects

Among the side effects observed after taking Viagra:

• Rashes on the epidermis;
• Intense migraines, dizziness;
• Strong blood flow to the facial skin;
• Deterioration in the quality of vision;
• bowel disorder, flatulence;
• Difficulties with nasal breathing - swelling of the mucosa of the nasopharynx;
• Stagnant processes in the urinary tract organs.

Contraindications

Dangerous drug for men who suffer from disorders of the heart or blood vessels. Viagra is not compatible with a number of drugs, parallel receiving these drugs I should be agreed with your doctor:

• Ketoconazole, erythromycin increase the effect of taking Viagra;
• Rifampicin reduces the effect of the medicine.

You can not combine the intake of Viagra with nitroglycerin. It is fraught with the development angina and other irregularities in the cardiac unit. Do not take the drug if there are congenital or acquired pathology in the structure of the penis, as well as in the presence of leukemia, anemia and other disorders in hematopoiesis.

A source: https://stojak.ru/afrodiziaki-vozbuditeli/viagra-vred-i-polza.html

Viagra instructions for use, contraindications, side effects, reviews

Viagra - a fresh description of the drug, you can view the pharmacological action, indication for Viagra. Reviews of Viagra -

Drug for the treatment of erectile dysfunction. The drug: Viagra®

sildenafil

Encoding ATX: G04BE03KFG: The drug used for erectile disfunktsiiRegistratsionny number: P №015875 / 01Data registration: 02.08.04

Owner reg. dignify.: PFIZER PGM {France}

Release form of Viagra, the drug and the composition of packaging

Coated tablets blue, diamond-shaped, slightly biconcave, with cut and rounded edges, with the inscription «Pfizer» on one side and «VGR 25" - on the other. 1 tab.

sildenafil * (in the form of citrate) 25 mg Excipients: microcrystalline cellulose, calcium Anhydrous hydrogen phosphate, croscarmellose sodium, magnesium stearate, film coat Opadry blue and Opadry transparent. 1 PC. - blisters (1) - packs kartonnye.1 pieces. - blisters (2) - packs kartonnye.1 pieces. - blisters (3) - packs kartonnye.2 pieces. - blisters (1) - packs kartonnye.2 pieces.

- blisters (2) - packs kartonnye.2 pieces. - blisters (3) - packs kartonnye.4 pieces. - blisters (1) - packs kartonnye.4 pieces. - blisters (2) - packs kartonnye.4 pieces. - blisters (3) - packs kartonnye.8 pieces. - blisters (1) - packs kartonnye.8 pieces. - blisters (2) - packs kartonnye.8 pieces. - blisters (3) - kartonnye.12 pcs pack. - blisters (1) - packs kartonnye.12 pieces. - blisters (2) - packs cardboard.

12 pcs. - blisters (3) - packs kartonnye.4 pieces. - vials polyethylene (1) - packs kartonnye.8 pieces. - vials polyethylene (1) - packs kartonnye.12 pieces. - vials polyethylene (1) - packs cardboard. Coated tablets blue, diamond-shaped, slightly biconvex, with cut and rounded edges, labeled «Pfizer» on one side and «VGR 50" - to another. 1 tab.

sildenafil * (in the form of citrate) 50 mg Excipients: microcrystalline cellulose, calcium Anhydrous hydrogen phosphate, croscarmellose sodium, magnesium stearate, film coat Opadry blue and Opadry transparent. 1 PC. - blisters (1) - packs kartonnye.1 pieces. - blisters (2) - packs kartonnye.1 pieces. - blisters (3) - packs kartonnye.2 pieces. - blisters (1) - packs kartonnye.2 pieces.

- blisters (2) - packs kartonnye.2 pieces. - blisters (3) - packs kartonnye.4 pieces. - blisters (1) - packs kartonnye.4 pieces. - blisters (2) - packs kartonnye.4 pieces. - blisters (3) - packs kartonnye.8 pieces. - blisters (1) - packs kartonnye.8 pieces. - blisters (2) - packs kartonnye.8 pieces. - blisters (3) - kartonnye.12 pcs pack. - blisters (1) - packs kartonnye.12 pieces. - blisters (2) - packs cardboard.

12 pcs. - blisters (3) - packs kartonnye.4 pieces. - vials polyethylene (1) - packs kartonnye.8 pieces. - vials polyethylene (1) - packs kartonnye.12 pieces. - vials polyethylene (1) - packs cardboard. Coated tablets blue, diamond-shaped, slightly biconvex, with cut and rounded edges, labeled «Pfizer» on one side and «VGR 100" - to another.

1 tab. sildenafil * (in the form of citrate) 100 mg Other ingredients: microcrystalline cellulose, calcium Anhydrous hydrogen phosphate, croscarmellose sodium, magnesium stearate, film coat Opadry blue and Opadry transparent. 1 PC. - blisters (1) - packs kartonnye.1 pieces. - blisters (2) - packs kartonnye.1 pieces. - blisters (3) - packs kartonnye.2 pieces. - blisters (1) - packs cardboard.

2 pcs. - blisters (2) - packs kartonnye.2 pieces. - blisters (3) - packs kartonnye.4 pieces. - blisters (1) - packs kartonnye.4 pieces. - blisters (2) - packs kartonnye.4 pieces. - blisters (3) - packs kartonnye.8 pieces. - blisters (1) - packs kartonnye.8 pieces. - blisters (2) - packs kartonnye.8 pieces. - blisters (3) - kartonnye.12 pcs pack. - blisters (1) - packs kartonnye.12 pieces.

- blisters (2) - packs cardboard.

12 pcs. - blisters (3) - packs kartonnye.4 pieces. - vials polyethylene (1) - packs kartonnye.8 pieces. - vials polyethylene (1) - packs kartonnye.12 pieces. - vials polyethylene (1) - packs cardboard.

* - Valium the international name recommended by the WHO, in the Russian Federation made the writing of the international name - sildenafil.

Description of the drug based on the approved instructions for use.

Drug for the treatment of erectile dysfunction. Sildenafil is a potent selective inhibitor of cGMP-specific phosphodiesterase type 5 (PDE5).

Sildenafil has no direct relaxing effect on isolated corpus cavernosum, but enhances the relaxing effect of NO on this tissue by inhibiting PDE5, which is responsible for the breakdown of cGMP in the cavernous body.

Inhibition of PDE-5 under the influence of sildenafil increases the levels of cGMP in the cavernous body, resulting in smooth muscle relaxation and increased blood flow in the cavernous body. Sildenafil at recommended doses ineffective in the absence of sexual stimulation.

Sildenafil is selective for PDE5 in vitro, its activity against PDE5 superior activity against other known phosphodiesterase isoforms (10 times - PDE6, more than 80 times - FDE1, more than 700 times - PDE2, PDE4, FDE7 - FDE11).

The sildenafil against PDE5 approximately 4000 times more potent than for PDE3 - cAMP-specific phosphodiesterase involved in myocardial contraction. In some patients, after 1 hour after dosing at a dose of 100 mg via test Farnsworth-Munsell 100 showed mild and transient impaired ability to distinguish between shades of color (Blue / green); 2 hours after receiving these changes were absent.

It is believed that impaired color vision caused by inhibition of PDE6, which is involved in the transmission of light in the retina. Sildenafil has no influence on visual acuity, contrast perception, electroretinogram, intraocular pressure or the pupil diameter.

Pharmacokinetics

Pharmacokinetics

Sildenafil dose-dependent when administered at the recommended dose range. Absorption After taking the drug inside Sildenafil is rapidly absorbed. Absolute bioavailability on average was 40% (25-63%). In vitro sildenafil at a concentration of 1.7 ng / ml (3.5 nM) of human PDE5 inhibits by 50%.

After a single dose of 100 mg of the drug inside the Cmax of 18 ng / ml (38nM) and is achieved in the fasting state for 30-120 minutes (median 60 minutes). When receiving sildenafil in combination with fatty food decreases the rate of absorption; Tmax is increased by 60 minutes, and the average Cmax is reduced by 29%.

Distribution Vd sildenafil in the equilibrium state is on average 105 liters. Sildenafil and its main circulating metabolite N-desmetilny approximately 96% bound to plasma proteins. Protein binding is independent of total concentration of sildenafil. Less than 0.

0002% of the dose (mean 188 ng) was found in semen after 90 min after administration of sildenafil. Metabolism Sildenafil is metabolized mainly in the liver by the action of microsomal isozymes CYP3A4 (major route) and CYP2C9.

The main circulating metabolite which is formed by the N-desmetilirovaniya sildenafil undergoes further metabolism. By selectivity of action on PDE metabolite comparable with sildenafil, and its activity against PDE5 in vitro is approximately 50% of the activity of sildenafil.

The concentration of metabolite in the plasma is about 40% of that of sildenafil. N-desmetilmetabolit undergoes further metabolism; its terminal T1 / 2 of about 4 hours. breeding

Total body clearance of sildenafil is 41 l / hr, and T1 / 2 in the terminal phase - 3-5 hours. After oral administration of sildenafil is output as metabolites, mainly in the feces (about 80% of the dose) and to a lesser extent - in urine (about 13% of the dose).

Pharmacokinetics

in special clinical situations Elderly (65 years and older) patients sildenafil clearance was reduced, and the concentration free active substance in plasma is approximately 40% higher than its concentration in young (18-45 years) patients.

In renal failure light (CC 50-80 ml / min) and average (CC 30-49 ml / min), the severity of pharmacokinetic parameters after oral administration of sildenafil once (50 mg) was not changed.

In renal insufficiency, severe (CC 30 ml / min) sildenafil clearance is reduced, which results in approximately doubling increase in AUC (100%) and Cmax (88%) compared with those parameters during normal renal function in patients of the same age group.

In patients with cirrhosis (class A and B Child-Pugh) sildenafil clearance is reduced, leading to an increase in AUC (84%) and Cmax (47%) compared with those indices in normal liver function in patients of the same age group.

Indications for use:

- erectile dysfunction characterized by the inability to achieve or maintain an erection of the penis sufficient for satisfactory sexual intercourse.
Sildenafil is effective only if there is sexual stimulation.

The dosage and method of administration of the drug

The drug is taken orally. For most patients, the recommended dose is 50 mg for about 1 hour prior to sexual activity. Given the efficacy and tolerability of the dose may be increased to 100 mg or decreased to 25 mg.

The maximum recommended multiplicity of application - 1 time / day. Elderly patients No dose adjustment is required.

In renal insufficiency, mild and moderate severity (CC 30-80 ml / min) correction dose is not required, renal failure, severe (KK170 / 100 mm Hg) or hypotension (blood pressure

A source: https://medistok.ru/v/1371-viagra-instrukcija-po-primeneniju.html

Viagra: contraindications and side effects

Viagra - is the drug sold in the world to stimulate an erection. Means acts quickly, providing persistent erection for several hours.

When pill Viagra contraindications relate primarily to the health of the cardiovascular system. Also there are a number of features and limitations, which can lead to a weakening effect of the drug.

Before you start taking the pills to look closely at the instructions in order to avoid side effects.

release form, detailed composition, original packaging

The drug causes a persistent erection for several hours

Viagra - a drug, sildenafil having as a main component. Tablets lets the company "Pfizer" in the United States and France. There are two dosage formulation: 50 and 100 mg of active ingredient per tablet. Additional components in the composition, providing form of medication and transport of the active substance:

• cellulose;
• calcium hydrogenphosphate;
• magnesium stearate;
• lactose monohydrate;
• glycerol;
• titanium dioxide.

The tablets are made in the shape of a diamond and colored blue. A distinctive feature of the original medicine - is the name of a pharmaceutical company, engraved on each tablet. On the reverse side always appears dosage formulation.

Viagra at a dosage of 50 mg is produced by 1 or 4 tablets. They are packed in a blister pack, placed in a cardboard box. A preparation in the dosage of 100 mg is produced by 1, 2, 4 or 8 tablets in the package.

The original formulation is produced in a blue-white cardboard package with a holographic label of the manufacturer on one side. Each package has a first opening control, designated tear line. Packaging same drug for different dosages, only differs figure indicating the amount of active ingredient (100 or 50).

pharmachologic effect

Before using the drug man should feel sexual attraction

Preparation relates to inhibitors of PDE5. Its action is shown with respect to block the enzymes that cause vasospasm of the penis, and while increasing production of substances, smooth muscle relaxing body structure. This provides a full flow of blood to the penis and a sufficient filling of the cavernous bodies to achieve sustainable erection.

Viagra is valid only in the presence of sexual desire. If a man with erectile dysfunction does not feel sexual arousal and stimulation does not bring any emotions, to take the drug useless.

The action starts after the tablets up to two hours after administration and lasts about 4 hours. The original drug is generally well tolerated by the body, but without the Viagra side effects do not exist, so it is important to take the medicine correctly. It is better if the drug is prescribed by a doctor.

Despite the fact that pharmacies Viagra released strictly on prescription, in some stores for adults practiced without prescription drug.

It is important to make sure that the man acquires the original tablet, not a cheap substitute under the guise of the drug. There are many substitutes and analogues of Viagra, but they are not without side effects.

Moreover, the risk of dangerous side effects when taking cheap generic counterparts and higher than when using the original drug.

Dosage and overdose

Overdosing may increase side effects of the drug

When receiving the tablet Viagra contraindications depend on the dosage. The recommended initial dose - 50 mg. Taking the drug must be some time before sexual intercourse.

By a physician, the dosage may be increased to 100 mg. This increases the risk of side effects after Viagra. If 50 mg of the drug causes a persistent and prolonged erection, it is advisable to consider the possibility of reducing the dose to 25 mg.

Viagra - a pill for men quick action, however, contraindications should be considered regardless of the frequency of drug administration. Drink tablets at the recommended dose should not be more than once a day. Permissible frequency the medication should be discussed with your doctor.

An overdose of pills Viagra does not cause acute severe conditions requiring urgent hospitalization, but may lead to increased side effects, the consequences of which have a negative impact on all body. Symptoms of overdose:

• impairment or loss of vision;
• Blood pressure drops;
• irregular heartbeat;
• dizziness;
• prostration.

If you suspect an overdose should wash out the stomach, provoke vomiting. In case of deterioration of the man recommended immediately examined by a physician. Hemodialysis for overdose with this drug is not effective, since the metabolites are not excreted by the kidneys.

product compatibility

Do not take alcohol before use

The risk of side effects of the drug depends on how a man takes Viagra. In drug metabolism operates food, alcohol and other drugs. all possible interactions should be studied in detail to get the maximum effect for potency, and thus avoid the development of serious side effects.

Viagra and the food

Metabolism preparation is produced by the liver. The higher the load on the liver, the lower bioavailability of the drug, and hence the therapeutic effect worse. Therefore, Viagra should be taken on an empty stomach. This does not necessarily have to be the first half of the day - it is important to give up eating at least 2 hours before taking the pill for erection.

The drug should not be taken with grapefruit juice, as it reduces the efficiency of erection pills.

question is often raised about what would happen if we take the drug at meal time. In fact, no side effects or health risks will arise, a drug does not work, or its effect on erection is not strong enough.

When receiving the tablets with fatty foods observed:

• decrease the bioavailability of the drug (from 41% to 25%);
• metabolism increase, whereby not manifest the action tablets an hour later;
• reduction in efficiency resulting will either not strong enough erection, or the effect of the drug is reduced to 1-2 hours.

In this case, the liver still get a heavy load, which may affect the overall health and the digestive system. In addition, it is worth remembering that in the absence of the effect of food intake re-take pill Viagra is prohibited in the same day.

Compatible with alcohol

Contraindications to the use of Viagra - is the simultaneous use of alcohol. This contraindication is not very strict, and in principle, nothing terrible will happen if you drink a little wine.

The keyword here is "a little", that is no more than 100-200 ml. By itself, alcohol does not affect the pills work for potency, but the effect on the functions of the whole organism.

If you wash down a pill with alcohol, it still works, but man it can not bring pleasure.

https://www.youtube.com/watch? v = Dz8beDNgK-U

When concomitantly with alcohol reads:

• rapid increase in blood pressure;
• headache;
• hot flashes to the face;
• dizziness.

These states are the side effects of Viagra, but alcohol intake leads to the fact that they occur very quickly, and not at the conclusion of the tablet. Thus, a man may be a good erection, but when a large number of alcohol health deteriorates so that sexual desire can completely abyss.

Another negative scenario - is the use of alcohol before taking Viagra. In this case, it blunted neural activity, and Viagra only works if there is sexual stimulation in general.

Thus, taking the pill after drinking alcohol can not bring the expected result, so how exciting the men will not be strong enough to provide the necessary conditions for the action tablets.

Compatible with drugs

The following drugs and substances increase the side effects of Viagra:

• Nitrates.
• Ketoconazole.
• Erythromycin.
• Blockers, alpha-adrenergic receptors.
• Antihypertensives.

The main side effect of such combinations - a strong reduction of blood pressure and discomfort associated with this condition.

Viagra should not be taken with ritonavir, rifampicin, Nikorandilom.

Side effects

Among the side effects of the drug - drowsiness and weakness

Understand the mechanism of the effect of Viagra in the body and examining the contraindications, the man should carefully read the information about what side effects are possible when taking this pill.

The most common side effects include:

• pressure peaks;
• hot flashes;
• rhinitis;
• vertigo;
• weakness and drowsiness;
• orthostatic hypotension;
• tachycardia.

These phenomena are relatively safe, but when taking Viagra should be taken into account, what side effects may occur depending on the general state of men's health. The main factor that increases the risk of serious consequences are cardiovascular disease in men. Potentially dangerous side effects include:

• brain stroke;
• myocardial infarction;
• sudden cardiac death;
• seizures;
• violation of the blood supply to the retina;
• blurred vision;
• hearing loss;
• liver failure.

Also, some groups of patients may develop a hypertensive crisis, or cardiogenic shock. It is recommended to consult with your doctor about the possibility of the drug and to pass the necessary examinations.

Effect on Conception

The drug has no effect on the process of conception

Direct influence on the conception of the drug has not. However, frequent erections may lead to a decrease in sperm motility, resulting in fail to conceive. Reproductive toxicity Viagra is not. Talk to your doctor about the advisability of the use of this tool in the planning of conception, especially couples older than 40 years.

How often can I take Viagra?

The drug should not be used more than once a day

Precise recommendations on this issue no. It all depends on how well a man takes this medication.

The main requirement - a pill at the recommended dosage should not be administered more than once in 24 hours. Everything else depends on the general state of health.

Some doctors recommend a stay at the 4 methods of the drug in the last month, other experts believe that the drug can be taken several times a week.

Since the side effects of Viagra male different symptoms, the frequency of dosing also determined individually.

Contraindications

Of the drug should be discontinued if:

• intolerance of sildenafil and other substances in the composition;
• severe cardiovascular disorders;
• recent stroke or heart attack;
• severe liver work;
• retinal degenerative diseases (including hereditary).

Men with pathologies of the cardiovascular system, including essential hypertension, cardiac ischemia, unstable angina, you should be very careful. In these cases, the drug is not recommended.

In old age, you can take the drug, dosage adjustment is required. Precise recommendations give the doctor after examination of the patient.

What should I do if side effects?

With an increase in heart rate and heart pain, you must call an ambulance

Mild side effects, such as headache and a slight decrease in blood pressure, do not require specific therapy. They pass on their own for a few hours. With the development of the following conditions should call an ambulance:

• heartache;
• pulse rise over 100 beats per minute;
• rapid pressure jump;
• severe stomach pain;
• urination with blood;
• bleeding from the penis;
• loss of consciousness.

If Viagra is tolerated hard, you should consult with a urologist or andrologist. The doctor further direct the patient to a physician and a cardiologist for complex examination.

Minimize health risks to help the following rules:

• the drug in the minimum therapeutic dose;
• compliance with recommendations for receiving time;
• use only original preparation;
• preliminary examination of the cardiovascular system.

Men older than 50 years should be examined by a cardiologist to exclude pathologies of the cardiovascular system. This greatly minimizes the side effects of the drug.

A source: https://muzhik.guru/potentsiya/preparaty/viagra/

Viagra - contra-indications and side effects

Creating a drug to improve male potency "Viagra" is the third greatest achievement of the scientists of the twentieth century after penicillin and x-rays.

"Viagra" - the world's first take oral pharmaceutical tableted means which found to be effective for the majority of males suffering erectile disorder.

The researchers, who were able to bring joy to thousands of men, in 1998, were awarded the Nobel Prize.

The history of the drug "Viagra"

In the 90-ies of the last century, scientists working at the American company "Pfizer", engaged in the invention of a new drug that was supposed to relieve chest pain in angina pectoris. However, during clinical trials it was found that the active ingredient, sildenafil does not have undue influence on the heart.

At the same time all the men who took part in the trials, enthusiastically talked about the severe side effects associated with improved potency.

When most of the participants, flatly refused to return useless for heart pills and one even Try to get to the lab to replenish their stocks, company managers realized they had found the "sweet mine ".

Since 1993, we carried out a long and complex investigation, the purpose of which was to confirm the unusual properties of "Viagra". The result has been proved not only high performance, but also safety of the tablets in the fight against male erectile dysfunction. As a result, the Department of the United States for the control of drugs has authorized the release of the drug "Viagra".

How does the "Viagra"

The main mechanism of action of this drug is a significant increase in blood flow to the penis, which contributes to the appearance of the natural male erection. "Viagra" has a positive effect only on natural mechanisms of erection - in this its novelty and the secret of the incredible popularity.

"Viagra" is not obschevozbuzhdayuschim means that increases male libido, and does not cause the appearance of sexual desire as such - effect of "magic" pills is based only on the local increase in blood flow to the corpus cavernosum of the penis, which contributes to the emergence of erection.

Reception of "Viagra" and the definition of dose

Usually it is recommended to receive one tablet an hour before planned sexual activity.

The drug takes effect after about 30-50 minutes after administration and maintains its effect for several hours. If we take the "Viagra" to the food, it will work faster.

Preparation "Viagra" is available in three dosages: 25 mg, 50 mg and 100 mg. Originally assigned average dose - 50 mg, and then, depending on the coming into effect, it can be skorretirovana to decrease or increase. There is another approach that you should start with the lowest dose and for the order, if necessary, increase the dosage.

Possible side effects

Like any other drug, "Viagra" has its side effects, the most important of which are: upset stomach, headache, nasal congestion, redness of the skin due to hot flushes, a temporary reduction in vision, shortness of breath, general poor health.

To avoid such "trouble" doctors recommend to select the correct dose, and in any case not to abuse the drug and not to use it more than once a day.

Contraindications to the use of "Viagra"

The use of "Viagra" is contraindicated in the presence of the following diseases:

Additionally, one can try to increase the potency via "Viagra", if there is a simultaneous reception be "magic tablets" with nitric oxide donators or any form of nitrates.

The above contraindications due to the fact that these diseases are generally accompanied by taking certain drugs. And this may hold a big threat. For example, the simultaneous reception of "Viagra" with nitrates can lead to death.

Also considered extremely dangerous to combine the "Viagra" to the health and life with drugs such as:

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Viagra

Viagra - a drug which is an inhibitor of phosphodiesterase fifth type used in the treatment of erectile dysfunction.

Release form and composition of Viagra

Viagra is produced in the form of tablets, the main active ingredient of which is sildenafil citrate.

Wigry tablets may contain 25, 50 and 100 mg of sildenafil.

As auxiliary substances are used in the preparation: magnesium stearate, microcrystalline cellulose, croscarmellose sodium, calcium hydrogen phosphate.

Pharmacological Effects of Viagra

Sildenafil - is a potent selective inhibitor of cGMP specific phosphodiesterase type 5.

The physiological mechanism of erection is based on release into the cavernous body of nitric oxide during sexual stimulation, which causes increase in cGMP level, followed by relaxation of corpus cavernosum smooth muscle and increased blood flow.

The preparation enhances the effect of nitric oxide action due to inhibition of PDE5 without causing direct exposure to the corpus cavernosum.

Sildenafil shows selective activity against PDE5 only.

The drug exerts its effect only if there is sexual stimulation.

Indications for use of Viagra

According to the instructions, Viagra pills are used to treat erectile dysfunction associated with the inability to achieve or maintain an erection of the penis which is necessary for normal sexual intercourse.

Contraindications

According to the instructions of Viagra pills should not be taken with:

• Presence of hypersensitivity to the components included in the formulation;
• Receiving donor of nitric oxide and any form of nitrate, so as sildenafil enhances the antihypertensive action of nitrates;
• Taking other agents for the treatment of erectile dysfunction;

as well as under the age of 18 years.

Viagra should be taken with caution in:

• Anatomical deformation of the penis;
• Diseases, which are accompanied by bleeding;
• Diseases that predispose to the development of priapism (multiple myeloma, sickle cell anemia, thrombocytopenia, leukemia);
• Exacerbation of peptic ulcer disease;
• Heart failure;
• Hereditary retinitis pigmentosa;
• Myocardial infarction within the last six months;
• Unstable angina;
• stroke;
• Hypertension;
• Severe arrhythmias.

Method of use and dosage of Viagra

According to the instructions of Viagra tablets are for oral use.

The drug should be taken one hour prior to sexual activity in a dosage of 50 mg. The dosage depends on the effect obtained can be reduced to 25 mg or increased to 100 mg.

The maximum daily dose - 100 mg. The dosage should be reduced when the patient of renal failure secondary and mild.

If Viagra is taken with ritonavir, the dose it should be 25 mg once every two days.

If the drug is taken simultaneously with erythromycin, itraconazole, saquinavir, ketoconazole, its initial dose reduced to 25 mg.

Side effects of Viagra

According to reviews, Viagra pills can cause certain side effects:

• Nervous system: dizziness; headache; convulsions;
• Digestive system: vomiting;
• Cardiovascular system: flushing; heart palpitations; fainting; tachycardia; nose bleed; lowering blood pressure;
• Organ of vision: change the sensitivity to light; blurred vision; change the perception of shades; redness and pain in the eyes;
• Allergic reactions: skin rash;
• Reproductive system: prolonged erections or priapism.

A source: http://prostatamaka.ru/preparaty/viagra-protivopokazaniya-i-pobochnye-effekty.html