sixty-eight obese subjects without gallstones who were entered in a program ( 520 kcal per day ) to lose weight were randomly assigned to receive ursodeoxycholic acid ( 1200 mg per day ) , aspirin ( 1300 mg per day ) , or placebo in double-blind fashion for up to 16 weeks .
C0008350
gallstones
C0042105
ursodeoxycholic acid