ObjectiveTo analyze the irrational prescriptions in pharmacy intravenous admixture services(PIVAS)of our hospital,in order to ensure the safety of drug use.MethodsThe medical advice of intravenous drug from May to December in 2015 of PIVAS was classified,summarized,and analyzed.ResultsAltogether 220 613 medical advices of intravenous drug of PIVAS were received ,among them,1619 prescriptions were unreasonable drug use,and the qualification rate was 99.27%.The top scale of irrational prescriptions was the improper dosage of solvent(32.74%),improper solvent selection was the next(23.29%).ConclusionPharmacis can correct clinical intravenous pharmacy problems promptly,reduce the side effects of drugs and avoid the occurrence of medical disputes.