The drug is intended for restoring male erectile function. To understand the mechanism of action, you need to imagine a simple scheme. Inside the penis there are cavernous bodies that are filled with blood during erection. This mechanism is based on complex enzymes and nitric oxide. It is impossible to do directly, but it is really due to the nitric oxide and the blocking of enzymes destruction. Please note that a normal erection is possible only if a man is sexually excited, or there is additional sexual stimulation of a penis. All the volunteers who took mg of this drug did not note the state aggravation.

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Sildenafil mg is a drug that is indicated for patients with a dysfunction of the reproductive system. This dose is prescribed to men, who find that the standard mg dose does not allow to have the desired effect. For the desired result, it is recommended to take mg, and then there will be a long-awaited natural erection mechanism. At the same time, the drug has the lowest possible side effects. Nerve impulses are transmitted from the cerebral cortex to the reproductive system; as a result of this process, at the time of sexual arousal, special chemicals affect the smooth muscles of the penis. An erection occurs when the cavernous bodies are filled with blood. When sexual intercourse is completed, the clearing of those substances that contributed to the relaxation of smooth muscles begins. Thus, the effect on a special enzyme PDE5 is terminated, and the muscles of the penis become non-erect again. The drug Sildenafil blocks such enzymes, thanks to which a long erection is possible.

VIAGRA sildenafil citrate, an oral therapy for erectile dysfunction, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate cGMP -specific phosphodiesterase type 5 PDE5. Sildenafil citrate is a white to off-white crystalline powder with a solubility of 3. For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. The maximum recommended dosing frequency is once per day. Based on effectiveness and toleration, the dose may be increased to a maximum recommended dose of mg or decreased to 25 mg. Consider a starting dose of 25 mg in patients treated with strong CYP3A4 inhibitors e.

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There are probably plenty of ways that may cause you to have erection problems, and therefore you will have low sex drive and problems with your libido. For example, when you are feeling insecure in bed or erection disappears so quickly, then going to the doctor is the best way for you to treat this particular problem. There can either be physiological issues that make you behave in this way or heart problems that lead to ED and cause you an erection. It may seem to be a silly way to get erection problems, but actually, your erection starts from your brain. Every time you get sexually stimulated, you will observe that erection does not happen because your blood vessels and nerves are damaged. This damage may be caused by your mental problems or maybe by a total absence of any type of interest in sex.

Daniel Medforth, 36, of Withernsea, East Yorks, had an erection lasting longer than four hours. A lot longer. Medforth, a plasterer by trade and a married father of two, told U. But after pill number 35, laughter gave way to concern. And there he stayed there for the next 36 hours—one hour for every year of his life that he almost threw away.

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The preparation, developed just few decades ago, has become a real solution for men with problems of impotence. In fact, 200mg viagra is erectile dysfunction? It is the pathology of physiological or psychogenic often mixed type, which does not give a sufficient amount of blood to fill cavernous body of penis during sexual stimulation. The solution is simple — to block the enzyme, PDE5, phosphodiesterase. But the same enzyme, only with other numeric value, is present in other tissues of the body and the medication should have a very narrow range of action in order not to provoke a heart attack or other adverse effects. So sildenafil was developed.

It is important that you tell all of your doctors that you take sildenafil. If you need emergency medical care for a heart problem, it is important that your doctor knows when you last took sildenafil. Do not use this medicine if you are also using a nitrate medicine, often used to treat angina or high blood pressure. If you will be taking this medicine for pulmonary arterial hypertension, your doctor will want to check your progress at regular visits. This will allow your 200mg viagra to see if the medicine is working properly and to decide if you should continue to take it.

You should take a pill and wash it down with a small amount of water for one hour before sexual intercourse. There is also Viagra for the forgetful drug containing sildenafil citrate that has to be breathed through an inhaler. There will be chewing gum with sildenafil citrate in the near future. So, you will be able to improve the potency, by chewing gum for thirty minutes before sex. This mechanism is very simple: usual nitric oxide increases blood flow in the penis. Therefore it leads to almost natural erection.

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