Method for treating nausea and vomiting

The invention relates to the use of compounds of the general formula (I)whereinR' represents a hydrogen atom or a C1-10 alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl-(C1-4) alkyl, C3-6 alkenyl, C3-10 alkynyl, phenyl or phenyl-C1-3 alkyl group; and one of the groups represented byR2, R3 and R4 is a hydrogen atom or a C1-3 alkyl, C3-7cycloalkyl, C2-6 alkenyl or phenyl - C1-3 alkyl group and each of the other two groups, which may be the same or different, represents a hydrogen atom or a C1-6 alkyl group; and physiologically acceptable salts and solvates thereof, for the relief of nausea and vomiting and/or the promotion of gastric emptying and for the manufacture of a medicament for this purpose. Promotion of gastric emptying may be for the relief of gastro-intestinal disorders associated with gastric stasis or may be of advantage in radiological examination procedures.The invention also relates to a product containing a therapeutic agent liable to induce nausea and vomiting, e.g. a cytostatic agent such as a cyclophosphamide, an alkylating agent or a platinum complex, and a compound of the general formula (1) as a combined preparation for simultaneous separate or sequential use in therapy.