However, the fact that tablets and other dosage forms have cheap analogs is quite simple to explain. Perhaps not the most obvious fact is that the measures for the invention of new drugs and their introduction into the widespread sale are very costly. This is due, as a rule, to the high cost of research. In this regard, there is an international agreement on patents - rights to the obtained invention. Thus, a pharmaceutical company that has discovered a new drug and has proven its effectiveness and safety gets the right to single-handed production on the market.