Abstract: A kind of piperphentonamine hydrochloride lyophilized powder for injection and a preparation method thereof. The injection is prepared by one portion of piperphentonamine hydrochloride, 2.5-30 parts of excipient and 400-600 parts of water for injection with pH 1.5-5.5 via freeze-drying. The excipient is mannitol, dextran, lactose, saccharose, polyethylene glycol, poloxamer, glycine, etc.; It is preferred that the injection comprises one part of piperphentonamine hydrochloride, 10 parts of mannitol and 500 parts of water for injection with pH 2.0-3.0. The product is prepared by adding said piperphentonamine hydrochloride and excipient into water for injection, heating at 40° C.-90° C., ultrasonic dissolving, degerming, individually packing, pre-freezing and multistage drying, and packaging. Individually packing into a tubular glass bottle with brown color is preferred. The appearance, color & luster and solubility of the injection are excellent, the stability is good and with long storage period.

Abstract: A kind of piperphentonamine hydrochloride lyophilized powder for injection and a preparation method thereof. The injection is prepared by one portion of piperphentonamine hydrochloride, 2.5-30 parts of excipient and 400-600 parts of water for injection with pH 1.5-5.5 via freeze-drying. The excipient is mannitol, dextran, lactose, saccharose, polyethylene glycol, poloxamer, glycine, etc.; It is preferred that the injection comprises one part of piperphentonamine hydrochloride, 10 parts of mannitol and 500 parts of water for injection with pH 2.0-3.0. The product is prepared by adding said piperphentonamine hydrochloride and excipient into water for injection, heating at 40° C.-90° C., ultrasonic dissolving, degerming, individually packing, pre-freezing and multistage drying, and packaging. Individually packing into a tubular glass bottle with brown color is preferred. The appearance, color & luster and solubility of the injection are excellent, the stability is good and with long storage period.