Ranitidine (Zantac); Histamine-2 Antagonist; Cap: 150, 300 mg Granules: 150 mg
Inj: 25 mg/mL
Syr: 15 mg/mL
Tab: 75, 150, 300 mg
Tab, Effer: 150 mg;
IV: 2-4 mg/kg/day q6-8h (max 200 mg/day), may put daily dose in TPN
Continuous IV infusion: loading dose 1 mg/kg, followed by 0.08-0.17 mg/kg/hr
PO: 4-5 mg/kg/day q8-12h (max 10 mg/kg/day or 300 mg/day for GERD or 600 mg/day for erosive esophagitis)
The 75-mg tablet is available OTC. Adjust dose for
renal impairment.