Loading doses usually do not need to be
adjusted in patients with chronic kidney disease. Published guidelines suggest methods
for maintenance dosing adjustments: dose
reduction, lengthening the dosing interval,
or both.
4
Dose reduction involves reducing
each dose while maintaining the normal
dosing interval. This approach maintains
more constant drug concentrations, but it is
associated with a higher risk of toxicities if
the dosing interval is inadequate to allow for
drug elimination. Normal doses are maintained with the extended interval method,
but the dosing interval is lengthened to allow
time for drug elimination before redosing.
Lengthening the dosing interval has been
associated with a lower risk of toxicities
but a higher risk of subtherapeutic drug