Shenzhen Xinqi Pharmaceutical Technology Co., Ltd.

Primary objective: Through a fasting study, the in vivo pharmacokinetic characteristics of the test preparation vitamin K1 injection (specification: 0.5ml: 1mg, provided by Shenzhen Xinqi Pharmaceutical Technology Co., Ltd.) and the reference preparation vitamin K1 injection (English name: Vitamin K1 Injection, specification: 0.5ml: 1mg, certified by International Medication Systems, Ltd) were investigated in healthy Chinese subjects under fasting conditions, and the bioequivalence of the two preparations was evaluated. Secondary objective: To evaluate the safety of the test preparation and reference preparation of vitamin K1 injection after a single injection in healthy Chinese subjects.