twelve adult volunteers were given 24 81-mg aspirin tablets and were randomly assigned into the following treatment groups : ( 1 ) control aspirin , ( 2 ) 30 ml of ipecac repeated if vomiting not induced , ( 3 ) 60 g of activated charcoal per 15 g of magnesium sulfate ( mgso4 ) , and ( 4 ) ipecac repeated if needed , followed by activated charcoal/mgso4 given 1 1/2 hours after the last vomiting episode .
C0022046
ipecac
C0042963
vomiting