Doctors say that both drugs may work equally well over the shorter time period, but Roche has proven its case with clinical trials and Schering has not.
But Roche also argued the case should have been thrown out in the first place, because Kendall had waited long past the two-year statute of limitations to file her case.
Patrick Roche, the lawyer representing her father John, argued that the case should be heard in front of a jury because of the high levels of chloral hydrate prescribed after her release by her doctor.
In Havana, Lynn Roche, an official with the U.S. Interest Section, said section officials couldn't discuss any case of an American who hasn't signed a privacy act waiver.