Abstract

The use of drugs in the general population and especially in the elderly has dramatically increased over the last decades, with older people aged 65 consuming about four times as many drugs as the rest of the population. Psychotropic drugs prescription in particular is becoming a major public health issue as its use is steadily increasing. After their use, drugs are excreted in their original form or as metabolites and enter aquatic systems via different ways. Although there is some information about the environmental impact of certain drugs, knowledge about what happens with the vast majority of them is simply lacking.