What’s Viagra?
To begin the review of by-effects of Viagra we should explain, what is this well-known medicine. Even if you don’t know what it is used for, you heard the mention of it from your friends or acquaintances.
Viagra is a medicine produced in the form of blue diamond-shaped tablets of various dosages and used to improve erection and as a remedy against erectile dysfunction. Viagra acts on the blood supply of the male genital organs, causing an increased flow of blood to the cavernous bodies of the penis and leading to the formation of a strong erection. It should be mentioned that the medicine itself doesn’t cause arousal – if a man doesn’t experience sexual desire or is not sexually stimulated, despite the fact that there will be more arterial blood in the cavernous bodies of his penis than usual, an erection will not occur. This effect proves that the principle of the action of Viagra is to stimulate the natural mechanism of erection occurrence, and the drug has nothing to do with narcotic substances or aphrodisiacs, in contrast to many of the remedies used to increase the male strength which were used previously.
Indications for Use of Viagra
As it was already mentioned, Viagra is a drug developed and used for treatment of erectile dysfunction. The patient should take this drug some time before the planned sexual act, usually about half an hour before it. The duration of the tablet is about four hours. For some men this time may be different, a little less or more.
Viagra is manufactured in the dosages of 25, 50 and 100 mg. Before using the drug, it is best to contact the urologist to determine which dosage is for you and whether you need to take exactly this drug. As a rule, urologists prescribe a standard dosage of 50 mg, but if it is not enough for a well-marked effect or the patient experiences strong side effects, the amount of the active substance is adjusted upward or downward.
Contraindications of Viagra
Viagra is popular in all countries of the world, but not everyone can afford to take it. And it's not about the money, the cause is a impressive list of contraindications. Sildenafil citrate, the active substance of Viagra, exerts a significant load on the cardiovascular system, which is why these pills are contraindicated for men with heart diseases. Also, Sildenafil raises blood pressure, so if you suffer from hypertension, you better choose some other drug to treat your sexual problems. However, in case of hypotension it is also not recommended to take Viagra: your arterial pressure may fall even lower, which will put your life at risk. Meanwhile, it rarely happens that a man doesn’t suffer from anything other than erectile dysfunction...
Unfortunately, men disregard the instructions and carelessly refer to the advice of doctors. As a result, they not only don’t receive the desired improvement in potency, but also acquire complications from taking “magic pills”. Never hurry to take an medicines without checking to see if they can be dangerous for you. The price of inattention can become anything, from unpleasant sensations to sudden cardiac death. Surely, in the news and the press you came across reports of actors and politicians who died during sex before which they took Viagra. In such misfortunes, it is not the pill that is to blame, but people who neglect reasonable precautions.
It should be remembered that Viagra can’t be taken together with medicines containing nitrates. Study the composition of all the drugs that you take to exclude the possibility of this harmful combination.
Also, don’t use along with Viagra such an excitatory-relaxing remedy as poppers. The combination of Sildenafil with nitric oxide, contained in poppers, leads to a sharp drop in blood pressure.
Sildenafil is contraindicated for men in the medical history of whom there are ischemic neuropathy of the optic nerve and various diseases of the retina. Viagra reduces blood supply to the arteries feeding the optic nerve and retina, which in healthy men causes distortion of color perception, similar to temporary color blindness, and in patients with the mentioned ophthalmologic problems it can lead to serious problems, including even blindness.
Healthy men who don’t have erectile dysfunction should not take Viagra. If you just want to increase your sexual stamina, better lead a healthy lifestyle, take vitamins and eliminate stress as much as possible.
As a rule, patients with chronic renal or hepatic insufficiency are prescribed gentle dosages of Viagra. Be sure to consult your doctor about the permissibility of using funds to improve erection, related to the group of PDE-5 inhibitors.
If you are already taking any drug to treat impotence, do not combine it with Viagra. You will achieve not a strengthening of the effect of both drugs, but only an increased number of side effects.
Viagra should be taken with caution in the event that you suffer from prostatitis or benign prostatic hyperplasia. For their treatment, drugs belonging to alpha-blockers are often used, the use of which in combination with Sildenafil has a negative effect on blood pressure.
Viagra must not be used in patients who have phalloprostheses or who use vacuum means to achieve an erection (pumps).