(1) taking 4mg of Zofran (ondansetron) while sniffing an isopropanol pad (one of those little wrapped alcohol wipes used to scrub the skin before an injection);
(2) sniffing the isopropanol pad while taking a placebo tablet; and
(3) sniffing a pad soaked in salt water while taking a 4mg Zofran tablet.
(1) Zofran/alcohol wipe - nausea down by 30 points
(2) Placebo/alcohol wipe - nausea down by 32 points
(3) Zofran/saline wipe - nausea down by 9 points.