Which statement is not true about lithium?

Question

Quizplus · Accepted Answer

Lithium is rapidly absorbed from the gastrointestinal tract,which accounts for its rapid onset of action.The drug has a long T 1/2 (24 hours)that increases the longer the patient is on lithium therapy.The T 1/2 can double over the course of a year's continuous therapy.Lithium is not metabolized and is eliminated unchanged in the urine.Lithium has a narrow therapeutic index.A competitive interaction may occur between lithium and sodium in the kidneys that may result in lithium toxicity.Increased sodium intake can decrease lithium reabsorption and dehydration and increase lithium reabsorption.Plasma lithium levels and renal function should be monitored regularly to avoid development of lithium toxicity.

Which Statement Is Not True About Lithium