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Over the last years, on the global market of medicines there have appeared a great amount of multiple products exciting erotic power of men. They contain products of vegetative origin - herbal medicaments and nutritional additives or biologically active additives, homeopathic substanses and many others. Chemically synthesized medicines, such as Viagra super active, Cialis professional, Levitra and others are also used for such purpose.
Owing to the amount and multiplicity of medicaments like Viagra, Cialis or Levitra, the physician has a possibility to pick out the most effective treatment of impotence on the assumption of the reasons that produced it. So all these drugs has an utter right to exist.
Here is a short survey of a great number of drugs for curing erectile dysfunction.
Viagra
The international (nonproprietary) name of Viagra is Sildenafil. It's the first product of a young group of medicines called phosphodiesterase type 5 inhibitors.
On the assumption that there's respective sexual stimulation the medicine extends the blood vessels of a phallus. As a consequence bloodstream in a penis brings it to be usual erect.
Viagra is meant to treat erectile dysfunction in males which is also known as impotence. In case of erectile dysfunction ordinary erection of a man which is necessary for coitus does not take place. Sildenafil is effectual merely when there's erotic stimulation. It has no effect on the reproductive activity.
Viagra dose that is perfect for you shall be decided by your doctor. The normal dose is 50 mg but owing to its efficiency and drug acceptability can be either increased to 100 mg or lowered to 25 mg.
Don't take a pill with a larger dosage than was recommended by your physician. Never take more than 1 tablet once a day. In case of taking more pills that were proscribed you should straightway inform your doctor.
Cialis
Nowadays, Cialis (Tadalafil) has also extended all over the world to treat impotence except Viagra (Sildenafil). Cialis (Tadalafil) is the joint invention of the pharmaceutical enterprise Eli Lilly and YCOS company.
The facts on pharmacogenetics of these drugs testify in favour of Cialis. Thus, with Cialis the penis stays erect up to 36 hours (in 20 mg dose), with Viagra - 4-6 hours.
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Levitra
Nowadays, on the world pharmacological market there has emerged a young product - Levitra (Vardenafil). On the II phase of clinical testing Levitra had a positive effect on 80 percent of men taking it irrespective of their age.