SANTEN PHARMA. revenue for the last year amounted to 1.85 B EUR, the most of which — 1.72 B EUR — came from its highest performing source at the moment, Prescription Drugs, the year earlier bringing 1.81 B EUR. The greatest contribution to the revenue figure was made by Japan — last year it brought SANTEN PHARMA. 1.08 B EUR, and the year before that — 1.23 B EUR.