Ondansetron (Zofran®) 8mg-16mg (They come in 4, 8 and 16mg tabs. You might need 16-32mg.
Granisetron (Kytril®) 1mg tabs
Promethazine (Phenergan®) Tablets and Suppositories (12.5 mg, 25 mg, or 50 mg)
Aprepitant (Emend®) is new, and is used to prevent (not treat) nausea. Studies show it to be very effective especially when used in combination with the two drugs above and decadron (dexamethasone)..
Palonosetron (Aloxi®) this is fairly new and only available IV, but it is the ONLY long-acting drug on the market—good for up to 5 days after administration.