to evaluate its relative efficacy in noninflammatory pain , 159 hospitalized women with moderate or severe postpartum uterine cramps were given single oral doses of 50 mg of flurbiprofen , 650 mg of aspirin , 60 or 120 mg of codeine sulfate , or placebo in a parallel , stratified , randomized block , placebo-controlled , double-blind trial .
C0030193
pain
C0304352
codeine sulfate