placebo
FINDINGS:       Diclofenac-potassium was more effective than placebo in reducing migraine       headache pain at 2 h after dosing, which was the primary endpoint.
FINDINGS:       Diclofenac-potassium was more effective than  @SUBJECT$  in reducing  @OBJECT$  @PREDICAT$  at 2 h after dosing, which was the primary endpoint.