Ilaprazole (3-30 mg/kg; i.d.) dose-dependently inhibits gastric acid secretion[1].
In anesthetized rats, Ilaprazole dose-dependently increased gastric pH which was lowered by histamine infusion. In the case of i.v. injection, the ED50 of Ilaprazole and omeprazole is 1.2 and 1.4 mg/kg and in the case of i.d. administration, the ED50 of Ilaprazole and omeprazole is 3.9 and 4.1 mg/kg, respectively. Ilaprazole also significantly inhibits pentagastrin-stimulated gastric secretion. Its ED50 is 2.1 mg/kg and that of Omeprazole is 3.5 mg/kg with i.d. administration. In the case of i.v. injection, Ilaprazole is equipotent to Omeprazole. Ilaprazole also inhibits gastric acid secretion strongly in fistular rats. The ED50 of Ilaprazole administered intraduodenally is 0.43 mg/kg and that of Omeprazole is 0.68 mg/kg[1].
| Animal Model: | Male SD rat (after pylorus ligation)[1] |
| Dosage: | 3, 10, 30 mg/kg |
| Administration: | Intraduodenally |
| Result: | The acid output and volume significantly inhibited by about 60 % and 46 % at 3 mg/kg were s, respectively. At 30 mg/kg, it showed 93 % and 73 % inhibition on acid output and volume, respectively.
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