OUTLINE: This is a randomized, double blind, placebo controlled, parallel, multicenter study. Patients are randomized to one of two treatment arms. Arm I: Patients receive oral granisetron on day 0 at 60 minutes prior to the scheduled administration of IV cyclophosphamide or carboplatin (or doxorubicin) chemotherapy. On days 1 and 2, patients receive oral granisetron at approximately the same time as on day 0. Arm II: Patients receive oral granisetron on day 0 as in arm I. On days 1 and 2, patients receive oral placebo at approximately the same time as the granisetron tablets were taken on day 0. Patients are followed between 5 and 11 days after the last dose of study medication.