Dược Động Học :
▧ Absorption :
Well absorbed, with the tablet and syrup formulations being equally absorbed after oral administration.
▧ Protein binding :
Approximately 40% over typical plasma concentrations.
▧ Metabolism :
Following oral administration, rimantadine is extensively metabolized in the liver with less than 25% of the dose excreted in the urine as unchanged drug. Glucuronidation and hydroxylation are the major metabolic pathways.
▧ Route of Elimination :
Following oral administration, rimantadine is extensively metabolized in the liver with less than 25% of the dose excreted in the urine as unchanged drug.
▧ Half Life :
25 to 30 hours in young adults (22 to 44 years old). Approximately 32 hours in elderly (71 to 79 years old) and in patients with chronic liver disease. Approximately 13 to 38 hours in children (4 to 8 years old).