Safety and Pharmacokinetics of Kovacaine Nasal Spray in Pediatric Subjects

1 spray device is 0.2mL (200 μL) in volume and contains 6mg Tetracaine HCl 3% and 0.1mg Oxymetazoline HCl. Subjects receiving the 100 μL dose will receive half of the contents of one device using a dose divider. Subjects receiving the 200 μL dose will first receive half of the contents of one device using a dose divider and then 4 minutes later will receive the 2nd half by removing the dose divider. Subjects receiving the 400 μL dose will first receive the entire contents of one device and then 4 minutes later will receive the contents of a 2nd device.