PPI Gastric and duodenal ulcers, moderate and severe reflux esophagitis; pathological gastric hyper-secretion
藥理
Pantoprazole is a potent inhibitor of gastric acid secretion. Animal and in vitro studies have demonstrated it to be comparable to or more potent than omeprazole, with less potential for interactions with P450 cytochromes and better acid stability.
藥動學
Pantoprazole is well absorbed. It undergoes little first-pass metabolism resulting in an absolute bioavailability of approximately 77%. Protein binding: 98%. Metabolism: Pantoprazole is extensively metabolized in the liver through the cytochrome P450 (CYP) system. After administration of a single intravenous dose of 14C-labeled pantoprazole to healthy, normal metabolizer subjects, approximately 71% of the dose was excreted in the urine with 18% excreted in the feces through biliary excretion. Half life: 1 hour.
禁忌症
Hypersensitivity to pantoprazole; Severe hepatic insufficiency; Cirrhosis
懷孕分類
B
哺乳分類
Pantoprazole is distributed into milk; discontinue nursing or the drug because of potential risk in nursing infants.
Adults: gastric ulcer, duodenal ulcer and reflux esophagitis: 40mg IV QD for 7-10 days; pathological gastric hyper-secretion: 80 mg IV Q12H, may increase to Q8H, MAX 240 mg/day. Dosage reductions are not necessary for patients with renal insufficiency or on dialysis, the maximum daily dose 40 mg