On the European market only, we can find more than 100,000 different organic chemicals. The majority is used with the purpose of improvement of daily life, in the medicine, in food processing and other industrial processes.
In the human medicine, about 3000 different pharmaceutical substances of different groups are used in European Union. With the ageing of the population, the use of medicines per inhabitant increases and ranges among elderly population from 5 to 10 sorts of pharmaceutical drugs per individual.