The invention provides an andansetron composition for injection, relating to the technical field of drugs and
drug preparation. The main drugs of the andansetron composition include andansetron and
melatonin, wherein the
melatonin comprises a quick-release part and a
cyclodextrin encapsulated slow-release part. The andansetron composition for injection, provided by the invention, has the advantages that the
treatment effect of the andansetron is improved, the
instability of the MT (
melatonin), caused by the oral absorption of the MT and the fast distribution and
elimination of the MT are avoided, the first-pass effect of the MT is reduced, the dosage of the andansetron is reduced, the quick-release and slow-release combined
drug administration design is in line with the physiological
secretion characteristic of the MT, the problem of short half-life period of the MT is solved, the
biological availability of the product is improved, the melatonin has a synergistic effect on the andansetron for CINV (
Chemotherapy Induced
Nausea And
Vomiting) treatment, after the melatonin and the andansetron are combined, the CINV can be treated, the
treatment effect of the andansetron on the CINV are improved, the treatment course is shortened, the usage and the
side effect of the andansetron are reduced, and the
immunity of human bodies can be improved; and a certain concentration of melatonin maintained in the blood of the
human body can be used for effectively reducing the stress reaction of organisms and is facilitated to the treatment of the CINV.