The present invention provides an anticoagulant reversal agent which is a compound having the structure represented by formula I, a salt thereof, or a deuterated thereof. Experimental results have shown that the compound according to the present invention can more effectively suppress hemorrhagic complications caused by anticoagulants such as warfarin, heparin, and enoxaparin sodium, and exhibits high efficacy over a broad spectrum.
The application relates to the technical field of heparin and protamine analysis, in particular to a heparin and protaminedose determination method. The method comprises the following steps: obtaining a first sample set A, wherein A i is the ith first sample, A i is obtained by adding different doses of a preset chemical substance in a blood sample of a target individual; obtaining a whole blood activated coagulation time detection result set B; obtaining a target model according to the whole blood activated coagulation time detection result in B, the dose of the corresponding added preset chemical substance and a preset model; and obtaining the dose of the preset chemical substance corresponding to the target whole blood activated coagulation time of the target individual according to the target whole blood activated coagulation time and the target model. The application can determine the heparin dose and the protamine dose suitable for the target individual and corresponding to the target whole blood activated coagulation time, and provides a reference for the heparin dose and the protamine dose in an actual application scene.