Drugs Viagra, Cialis, Kamagra, Levitra are similar, because bring the same result. The drug Kamagra is a generic Viagra. These two drugs together the substance Sildenafil. In respect of Cialis and Levitra, they have different active substances. The first drug – Tadalafil, a second drug – Vardenafil. The main substances of all four drugs to provide the blood flow to the penis and are selective inhibitors.
Viagra (tablets) is available in the dose of 50 mg and 100 mg. Levitra (5 mg, 10 mg, 20 mg. Cialis (pills) is made at the dose of 20 mg. Kamagra (Sildenafil citrate) contains 50 mg or 100 mg of the basic substance. Kamagra Jelly is produced in the form of a gel and contains 100 mg Kamagra pills. All these medicines are effective only during sexual stimulation.
You take Viagra one hour before intercourse at the dose of 50 mg. The dose may be increased up to 100 mg if the medication does not work, and can also be reduced to 25 mg (for people over 65 years of age). After taking Viagra, it takes on average one hour and only then will come the effect. If you have taken Levitra, and then wait 15 to 25 minutes, and the effect is displayed. The effect of the drug lasts for 5 hours.
After taking Cialis wait only 15 minutes. When it comes to erection, you will be able to enjoy sexually acts during 36 hours. After taking Kamagra the effect occurs after 30 minutes. Kamagra Jelly takes up to an hour before sexual activity. The effect of the drug – 4 hours.
Of course, all these medications have their side effects. However, these actions are not serious. You don't have to be afraid. Often, after taking medicines may produce headaches, nausea, flushing of the face. These drugs are contra-indicated for people suffering of the heart, the liver, and the kidneys.
Carefully read the shelf life of the medications! You can't consume expired drugs. Viagra is in a period of 5 years, Cialis and Levitra act by only 3 years. Hide the medication of the child. For the allocation of the dose and mode of reception, see a doctor. Be attentive and careful.