Chemotherapy treatment with the platinum containing chemotherapies (e.g. cisplatin, carboplatin) are well noted and studied for their ability to cause ototoxicity which includes hearing loss, tinnitus, vertigo, or dizziness. It is the objective of this study to determine the safety and efficacy of SPI-1005 at three dose levels when delivered orally twice daily for 3 days, surrounding each cycle of platinum chemotherapy for head and neck or non-small cell lung cancer patients to prevent and treat chemotherapy induced hearing loss and tinnitus.