[The optimization of pharmacotherapy in patients with disordered kidney function]

A design for calculating the doses of medicinal agents in disorders of renal excretory function is suggested. It consists of a plate with three strips hinged to one another which have through grooves along their whole length. An equilateral triangle is drawn on the plate with scales A and B on its sides and a logarithmic scale V perpendicular to its base. Scale A serves for appraisal of the value of the renal residual function. Scale B is intended for appraising the amount of unchanged medicinal agent excreted by the kidneys of a healthy individual. Scale V shows the degree of reduction of the dose of the agent for the concrete patient with disturbed renal function.