About drugs Design of drugs A lot of using nowdays drugs were create as a result of expirements and observations by animals and people. The newest approaches to design drugs are based by determination biochemical and cellular changes, caused disease, and design chemichal compounds with certain properties, that can prevent or chang this upset. If a new drug prove its efficiency, by it continie work to improve its selectivity, activit, affinity to receptors and therapeutic effect. in developing drug other factors, for example, can it broke in tissue and liquids of organizm. Ideally, the drug must be absorbed by ingestion (for the convenience of self-use), absorbed in the required amount of zhelulochno tract and be fairly stable in the tissue that was possible onokratny take during the day drugs must be highly selective in action on the organ or target tissue and should not affect the other parts (except for the minimal or insignificant side effects). Furthermore, it is desirable that the drug has a high degree terpevticheskogo aktivnst and action to be effective at low doses.