Short-term treatment has been used with 5 tablets/day of BS 530 (Eulip) in 25 patients suffering from various forms of hyperlipoproteinaemia, prevalently of Fredrickson's type IV, with or without signs of general or local arteriosclerosis. The preparation was always very well tolerated and proved to act rapidly in the lowering of both cholesterolaemia and triglyceridaemia.