A Study to Assess the Safety & Interaction Between GW679769, Dexamethasone, & Ondansetron When Taken by Healthy Adults

Casopitant (GW679769) tablets will be available as white, film-coated tablets containing 50 mg of GW679769 as the mesylate salt for oral administration.

Dexamethasone will be available as 4 mg tablets for oral administration and injection for IV administration.

Ondansetron for oral use will be available as 8 mg tablets to be taken with 240 milliliters (mL) of water on an empty stomach. For IV use, ondansetron 32 mg will be infused intravenously over a period of 15 minutes.