The famous Viagra quickly became popular among men. It has attracted interest of the pharmaceutical companies, engaged in the development of the new drugs. A great deal of work has been done over the years of research. The scientists created the analogs of the famous drugs.
The main active substance of Viagra is Sildenafil. The price of Sildenafil in the drug store is very high, so the Indian pharmaceutical companies create the analogs of expensive drugs, which have the same effect but are cheaper. Such drugs are called generics.
The generics of drugs increasing the sexual function are called Levitra, Viagra, Cialis, Impaza, etc. Its main active components are the same, but the additional substances can be replaced with their cheaper analogs. It allows to create cheaper generics of the expensive drugs.
Many of these drugs are manufactured by the Chinese pharmaceutical companies and based on the folk remedies of the Chinese medicine.
You should remember that such drugs don’t cure but only relieve the symptoms, allowing the man to feel confident. Therefore, if buy Viagra online and you note the first symptoms of erectile dysfunction, you should visit the specialist so that he/she can define the reasons.
Perhaps, sexual problems were caused by the recent infectious or venereal disease. In this case, cheap Viagra won’t be useful. It will just mask the problem, which will lead to its aggravation.
You shouldn’t exceed the drug dosage, as it won’t affect the duration of sexual act, but can lead to the overdose and side effects. The most common side effects are: sickness, vertigo, blood rush to the face, hypodynamy, tachycardia and blurred vision. The side effects can be caused by the use of Viagra together with the heart drugs. The doctors recommend to avoid exceeding the dose and abusing the drug. Besides, if the side effects are strongly pronounced, you can replace them with the drug with the similar chemical composition but less pronounced adverse effects. The most gentle drug is Levitra. It is compatible with the other drugs. Therefore, even older people can take it.
Erectile dysfunction (ED) is defined as an inability to achieve and maintain erection. It is believed that ED is the disease of the men of middle and old age. However, today it became obvious that the man’s age has almost nothing to do with this problem. According to WHO, every tenth man over the age of 21 has erectile dysfunction, and every third man over 60 can’t have sex at all.
It is important to know that ED can be caused by different factors- lack of exercise, extra weight and smoking. Besides, psychological factors often cause ED (they include sexual phobias or general stresses, depression, anxiety, etc.)
The main cause of ED are cardiovascular pathologies.
Besides, you shouldn’t forget about cheap Viagra abuse (as today the widespread advertising of pharmaceuticals and their availability in the pharmacy give people full confidence in the ability of self-medication without previous consultation, while the side effects can affect erection!). Thus, if you order Viagra without prescription, you should avoid many hypotensive drugs, antihistamines, hypotensive drugs and antidepressants.
Generic Viagra is widely used. Particularly, it was recommended to the patients with heart diseases. But according to the last research, this drug isn’t useful in the heart failure.
The point is that Viagra increases the blood flow to the certain parts of the body. The idea was that the drug would increase the blood flow to the heart. But the test on 216 volunteers (their middle age was 69) showed that Sildenadil – Generic Viagra– worked not better than placebo. Moreover, serious adverse effects were recorded.
Margaret Redfil, the professor of the Mayo Clinic has told: ”Within 24 weeks after the use of the drug by the study participants, they were checked for the improvement of symptoms and the condition of their cardiovascular system. However, there were no improvements. Instead, they experienced hot flushes and decrease of blood pressure. 6 people who used Viagra sildenafil citrate have died before the end of experiment”.
Viagra sildenafil citrate and other similar drugs belong to the PDE-5 inhibitors. Initially, the drug was intended to increase the blood circulation in myocardium, the treatment of angina and coronary heart disease. But it was used for the reduction of blood pressure in the pulmonary arteries.
Drug effectiveness
The components of Viagra help in 90% of cases, if a man has erectile dysfunction. Sildenafil is harmless for the most patients, but you should consult the doctor before starting the treatment.