The article discusses the dynamics of currencies, of media of exchange in a perspective of longue durée. It explores the concept of ›toxic media‹ and of an ›ecology of practices‹ by tracing discussions on cacao as money and as consumable since the 15th century. Furthermore, historically specifi c versions of general purpose money, such as the Spanish Silver-Peso and the U.S. dollar are compared with to self-restricting currencies: currencies that are more tightly knit into the »web of life« ( Jason (...) Moore), into local economies and ecologies and into cultural systems. The article determines toxic effects of generalized media of exchange in the Capitalocene and discusses the interplay of situated money-regimes with generalized, globalized media of exchange. (shrink)