PURPOSE: A medicinal composition or Cedrela sinensis extract is provided to suppress body fat synthesis and body weight and to reduce metabolic syndrome risk.CONSTITUTION: A medicinal composition for losing body weight contains 40-75 weight parts of gallic acid, 15-40 weight parts of ethyl galate, and 10-30 weight parts of methyl galate. The medicinal composition further contains 1-10 weight parts of rutin. A method for preparing the Cedrela sinensis extract comprises: a step of heating Cedrela sinensis leaves and water to prepare a pre-extract solution a step of filtering the pre-extract solution to prepare a first solid extract a step of extracting the first solid extract with an alcohol-solution to prepare a second solid extract a step of extracting the second solid extract with the alcohol-solution to prepare a third solid extract a step of extracting the third solid extract with the alcohol-solution to prepare a fourth solid extract a step of extracting the fourth solid extract with the alcohol-solution to prepare a fifth solid extract and a step of extracting the fifth solid extract with the alcohol-solution to prepare the Cedrela sinensis extract.COPYRIGHT KIPO 2012본 발명은 체중 또는 체지방 감량을 위한 의약 조성물 또는 참죽나무 추출물에 관한 것이며, 본 발명의 의약 조성물은 갈산 40 내지 75 중량부 에틸 갈레이트 15 내지 40 중량부 및 메틸 갈레이트 10 내지 30 중량부를 포함한다.
