Abstract: Objective To analyze improper prescriptions for antitumor drugs in Pharmacy Intravenous Admixture Service (PIVAS) in our hospital, so as to provide reference for clinical rational use of drugs. Methods A total of 211 improper prescriptions for antitumor drugs found in Pharmacy Intravenous Admixture Service (PIVAS) of our hospital between January 2016 and December 2017 were statistically and retrospectively analyzed．Results The improper prescriptions for antitumor drugs were concentrated in the selection of wrong solvents(61.61％), incorrect solvent dosage(17.54％), unsound dosage of administration(6.16％), and the wrong order in which drugs were used(5.69％). Conclusion The review of anti-tumor drug prescriptions should be strengthened,Intervention skills of prescription-checking pharmacists should be improved. Doctors and nurses should also increase their knowledge of drug instructions in order to improve the accuracy of prescriptions and guarantee the safety of antitumor drug use.

Key words: pharmacy intravenous admixture service (PIVAS), antitumor drug, irrational use of drugs