The active ingredient in ZANTAC Injection and ZANTAC Injection Premixed is ranitidine hydrochloride (HCl), a histamine H2-receptor antagonist.
ZANTAC Injection and ZANTAC Injection Premixed are indicated in some hospitalized patients with pathological hypersecretory conditions or intractable duodenal ulcers, or as an alternative to the oral dosage form for short-term use in patients who are unable to take oral medication.
Published Studies Related to Zantac Injection (Ranitidine Injection)
Clinical trial: intravenous pantoprazole vs. ranitidine for the prevention of peptic ulcer rebleeding: a multicentre, multinational, randomized trial. [2009.03.01]
BACKGROUND: Controlled pantoprazole data in peptic ulcer bleeding are few. AIM: To compare intravenous (IV) pantoprazole with IV ranitidine for bleeding ulcers... CONCLUSIONS: Outcomes amongst pantoprazole and ranitidine-treated patients were similar; pantoprazole provided benefits in patients with arterial spurting and gastric ulcers.
Effects of the H2-receptor antagonist ranitidine on gastric motor function after a liquid meal in healthy humans. 
CONCLUSIONS: Intravenous bolus injection of 50 mg ranitidine does not modify gastric volume or gastric emptying after a 600 mL liquid meal in healthy humans.
Continuous infusion of pantoprazole versus ranitidine for prevention of ulcer rebleeding: a U.S. multicenter randomized, double-blind study. [2006.09]
OBJECTIVES: No North American randomized study has compared ulcer rebleeding rates after endoscopic hemostasis in high-risk patients treated with high-dose intravenous (IV) proton pump inhibitors (PPIs) or IV histamine-2 receptor antagonists. Our hypothesis was that ulcer rebleeding with IV pantoprazole (PAN) would be lower than with IV ranitidine (RAN)... CONCLUSIONS: Because of the small sample size of this study, there was an arithmetic but not significant difference in ulcer rebleeding rates.
Effects of metoclopramide and ranitidine on preoperative gastric contents in day-case surgery. [2006.06.30]
This prospective, randomized, double-blinded study was performed to evaluate the effects of intravenous metoclopramide and ranitidine on preoperative gastric contents in outpatients receiving intravenous anesthesia for laparoscopic gynecologic surgery... In conclusion, intravenous prophylactic ranitidine and metoclopramide may be an easy and useful method to decrease the volume while increasing the pH of gastric contents, and therefore may reduce the number of patients at risk for aspiration pneumonitis in ambulatory laparoscopic procedures who receive an anesthesia.
Pharmacodynamic effects of 3-day intravenous treatment with pantoprazole or ranitidine after 10 days of oral ranitidine. [2005.01]
Tachyphylaxis (drug tolerance) is an undesirable condition in drug therapy with histamine-2-receptor antagonists (H2RAs).