Study drug The subjects were randomly alocated to receive either extract of mangosteen rind (EMR) containing 400 mg extracts of mangosteen rind or placebo capsules with the same appearance. EMR capsules are produced by PT Sido Muncul and marketed under BPOM (Indonesian National Agency on Food and Drug Administration and Control) registration number of TR. 112 325 671. The capsules were given three times daily for 3 weeks