The sphere of ED treatment gives a lot of possibilities for men with male impotence. It concerns the variety of ED drugs and their affordability in price. Moreover, nowadays there are a lot of generic drugs which are cheaper than the original medications. The production of original and generic versions has a lot of things in common. Very often, men do not trust the generic analogs and think that they are of bad quality and efficiency. Of course it is not the truth, because generic drugs should be approved by Food and Drug Administration.
FDA is the American organization which tests the food products and drugs on the quality and effect on a human body. The high price of an original drug has its explanation. A manufacturer of this medicine should spend the great amount of money and time for the invention of a new drug. The invented chemical ingredient should prove that it is effective in the treatment of certain disease.   

There are the standards and demands which should be followed by a company which created a generic analogue. In the sphere of ED treatment there are such standards for a generic product: the same PDE 5 inhibitor, chemical composition, efficiency, time operating and others. The deviations in 15% are acceptable. When a generic drug gets an approval, it can be mass-produced.                                                                                                                                                                                                                                                                                                                                          Nowadays, there is an opportunity to try different ED drugs to choose the best variant appropriate to the heath characteristics of a patient. The production of trial packs provides such advantage. Trial Packs include the most popular and trusted ED drugs for male impotence treatment: Brand Cialis 20mg, Brand Viagra 100 mg, Brand Levitra 20 mg and their soft versions.
Trial packs are manufactured in three forms: Viagra + Cialis, Viagra Soft + Cialis Soft and Viagra + Cialis + Levitra. A package includes 10 pills of each medication. The maximal dose of Viagra per 24 hours is 100 mg of Sildenafil Citrate. The daily dosage of Levitra is 20mf of Vardenafil and the maximal dose of Cialis is 20 mg of Tadalafil. It is recommended to avoid fatty food, alcohol, grapefruit and grapefruit juice with the intake of ED drugs. These products may slow down their effect. Here you can buy trial packs online.