A block backward differentiation formula for solving fractional pharmacokinetics model

In this paper, an implicit fractional Block Backward Differentiation Formula is proposed for the numerical solution of the fractional pharmacokinetics model. The derivation is based on the Linear Multistep Method associated with the linear difference operator. Taylor's series expansion is considered in this study to obtain the coefficient values of the derived method. Numerical simulations are provided for different parameter settings of the order of derivatives, α and it is observed that the proposed method follows the behaviour of the basic graph when α is approaching 1. Therefore, the proposed method can be an alternative solver to solve the fractional model.