The invention relates to a method for creating an animal pharmacokinetic model of
drug multi-peak phenomenon. Include the following steps: select at least 6 dogs, half male and half female, administer according to the
dose, collect blood samples after administration, and ensure that at least 2
blood collection points are collected before the first peak at the time point of
blood collection, near the highest value of each peak At least 3
blood collection points were collected, and at least 3 blood collection points were collected after the last peak;
blood drug concentration was measured by
liquid chromatography mass spectrometry; the fitting constant was calculated according to 5 types of dogs ( DM), The minimum value is the pharmacokinetic
standard model class for the dog. This model can establish a
standard model in the dog body, and correctly calculate the pharmacokinetic parameters of this type of
drug, and obtain a reasonable dosage
regimen. The pharmacokinetic parameters of the multimodal
drug calculated by the generation
software are too small, which causes the defect of excessive dosage in dogs.