If you read the PR of 12-nov-09. Yo could see this:
Participants in the study were randomly assigned to one of three groups, 1) a control group, 2) a group that used ActiPatch, and 3) a group that was treated with over-the-counter strength acetaminophen in the form of Extra Strength Tylenol. Each of the group's participants then evaluated their levels of muscle soreness and discomfort 48 hours after vigorous resistance training designed to induce delayed onset muscle soreness.
You can't expect more than that.