“…In addition, the effect of the drug on gastric emptying is not apparent under some test conditions in normals (Ramsbottom & Hunt, 1970) but clear in others (Kreel et al, 1972). The measurement of drug (Heading, Nimmo, Prescott & Tothill, 1973) or ethanol (Finch, Kendall & Mitchard, 1974;Gibbons & Lant, 1975) absorption is an index of gastric emptying rate. We have used ethanol absorption as a method of measuring gastric emptying.…”