Ondissolve in the Prophylaxis/Rescue of Radiation Induced Nausea and Vomiting

Inclusion Criteria: * Informed consent * Patient will receive palliative radiation therapy considered emetogenic for bone metastases. * Group 1: At least mild nausea and/or at least mild vomiting as recorded in the Baseline Nausea and Vomiting Data Collection Sheet * Group 2: Nausea and vomiting recorded as 'none' in the Baseline Nausea and Vomiting Data Collection Sheet Exclusion Criteria: * Patient is scheduled to receive cranial radiation therapy during or within 10 days following completion of protocol RT. * Patient received cranial RT within 7 days prior to commencement of protocol RT. * Patient is scheduled to receive chemotherapy during or within 10 days following completion of protocol RT. * Patient received moderately or highly emetogenic chemotherapy within 7 days prior to commencement of protocol RT. * Patient is scheduled to change regimen/dose or start the use of corticosteroids (inhaled or topical permitted), or other medications considered to have antiemetic activity within 48 hours of protocol RT. * Patient is scheduled to change regimen/dose or start the use of corticosteroids (inhaled or topical permitted), or other medications considered to have antiemetic activity during or within 10 days following completion of protocol RT. * Patient is allergic to protocol medication. * Patient has a Karnofsky Performance Status score \<40. * Patient is a woman who is pregnant or of childbearing potential and is not using contraceptive measures.