United states Food and Drugs Administration approved the medication Staxyn (varbenafil HCL) tablets for the treatment of erectile dysfunction. The main advantage of Staxyn is that tablets are quickly dissolved in the mouth cavity under the tongue. Staxyn is made by GlaxoSmithKline and Merck & Co. The medication will be very soon available on US pharmaceutical market.

A well known preparation Viagra oral used for erectile dysfunction may be effective to overcome the consequence of a continuous flight.
Argentinean scientists carried out experiments on the hamsters and noticed that 50% of all hamsters restored their organism faster due to Viagra. The results of this investigation were published in Proceedings of the National Academy of Sciences.
However, the scientists noticed that Viagra works probably in combination with phototherapy and time zone change only in one direction, in flight to the East. The cycle day-night regulates in mammals the biological clock, which during daylight hours gives a command to act, and at night to sleep.

Viagra for women

Viagra for women

In 1999 Viagra awas approved by FDA to treat erectile dysfunction in men. However, not only men experience sexual problems. Currently, a lot of scientist tries to develop medicines that will help women tio improve libido and sexual health. Unfortunately, today there is no approved medicines for the treatment of decreased female libido and sexual health problems.

How does Viagra act?

Branded Viagra manufactured by Pfizer woks by inhibiting the activity of the enzyme called PDE5 or A phosphodiesterase type 5. This enzyme is responsible for the inactivation of cGMP. By inhibiting the activity of these enzyme Viagra increases the amount of cyclic GMP leading to the relaxation of the blood vessels in the cavernous tissue and improving blood flow to the penis.

Herbal Viagra

When any company offers a herbal Viagra it usually means that a company sells natural herbal supplements that are used in erectile dysfunction. The name of herbal Viagra is derived from the brand name Viagra manufactured by Pfizer and contains a synthetic active ingredient Sildenafil citrate. The high effectiveness of branded Viagra made the medication so popular that is name became an appellative. However, like other synthetic preparation Viagra possesses a range of contraindications such as cardiovascular diseases, concomitant use of nitrates, liver failure and others.  Also Herbal Viagra may cause different side effects, especially for patients with hypersensitivity.

Cialis

Currently more than 150 million men all over the world have problems with erection. According to clinical experience of Cialis use , this medication can significantly help them cope with this problem and restore a normal sexual life.
The main feature of Cialis is that it restores men’s ability to achieve erection for up to 36 hours. It is important to point the Cialis works naturally meaning that erection occurs onl in presence the sexual arousal. This will allow couples not to plan their sexual relations and not to abandon the habitual rhythm of life.
For example, you can take the pill in the morning and have a sexual intercourse in the evening.Investigations showed that the effect of Cialis does not depend on alcohol and a food intake. However high doses of alcohol should be avoided prior to taking Cialis. Their combination may cuase a severe drop in blood pressure and dizziness.

Viagra is in many ways is a unique preparation. The active ingredient of Viagra – Sildenafil citrate has first been developed for treatment of pulmonary hypertension and has shown unique properties in fighting erectile dysfunction during clinical trials. But why is the drug so unique?  Firstly due to its high efficacy, the drug affects completely natural mechanism of erection and exerts a minimal number of side-effects. The effect of the preparation on the quality of life in men is also significant. An impression may even be formed that the effects of Viagra on life quality are so evident that a study to determine the fact is not needed. The founders of modern sexology William H. Masters and Virginia Johnson have first determined the connection between erectile dysfunction and psychological disorders in men.