Viagra, or indeed the active substance sildenafil, was invented by Pfizer's medical experts. In the first years of the existence of this preparation, its high price made viagra one of the most frequently counterfeited medicines in the world.
Viagra is a medicine for men who experience problems with normal erection. It contains a chemical compound that improves the flow of blood to the genitals. Interestingly, the effectiveness of viagra was discovered accidentally. Initially, sildenafil was intended for angina pectoris and hypertension. It soon became apparent that the clinical results were not so satisfactory for these diseases. Sildenafil was patented in 1996 and sold two years later under the name Viagra.
Facts and myths about Viagra
Contrary to all myths, viagra does not cause an immediate erection. The drug must be administered up to six hours before intercourse. Viagra allows you to have an erection only as a result of normal sexual stimulation. The preparation is intended for erection problems with psycho-neurological background. The dose is usually adjusted to the individual patient. The myth about viagra is that the drug works like an aphrodisiac. This measure does not increase the desire for sex, but it does contribute to inducing erections. There are beliefs or fears that the erection will last for hours after using viagra. Of course, this is not true, the impotence pill works from 4 to 5 hours. It is commonly believed that the consumption of alcohol and heavy and fatty foods affects the effectiveness of the pill. This is true because these measures create erections. The ability to erect properly decreases with the amount of alcohol drunk.
Contraindications for using viagra
You cannot take this medicine if you are under 18 years old. Men who have had a myocardial infarction or stroke at an interval of 2 weeks must be careful when using viagra. Persons who suffer from ischemic heart disease, hypertension and arrhythmia should also resign from taking the drug, unless the doctor states otherwise. Men who use nitrate medication on a daily basis should absolutely forget about viagra treatment. It is not recommended to administer viagra to people who suffer from stomach ulcers, are allergic to any of the drug components or have liver or kidney failure. Failure to comply with possible contraindications is the cause of undesirable effects, such as: nasal obstruction, palpitations, muscle pain, indigestion, nausea and vomiting. In exceptional cases, side effects are dangerous to health.