RATIONALE: Antiemetic drugs may help to reduce or prevent nausea and vomiting in patients treated with radiation therapy. It is not yet known whether lerisetron is more effective than granisetron in preventing nausea and vomiting. PURPOSE: Randomized phase III trial to compare the effectiveness of lerisetron with that of granisetron in preventing nausea and vomiting in men who are being treated with radiation therapy for stage I seminoma.
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