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Pharmacology General c8e6c557

Digoxin can accumulate to toxic levels in patients with:

A
Renal insufficiency
B
Chronic hepatitis
C
Advanced cirrhosis
D
Chronic pancreatitis
High-Yield Explanation
Digoxin is primarily excreted unchanged by the kidney, mainly by glomerular filtration. Rate of excretion is altered parallel to creatinine clearance. Its  t½  is prolonged in elderly patients and in those with renal insufficiency: dose has to be reduced.  Digoxin is a cumulative drug. When maintenance doses are given from the beginning, steady state levels and full therapeutic effect are attained after 4 x t½, i.e. 6-7 days. Reference: Essentials of Medical Pharmacology Eighth Edition KD  TRIPATHI  page no 560

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