Intravenous proton pump inhibitor therapy: a rationale for use

Area of Science:

• Gastroenterology
• Pharmacology

Background:

• Proton pump inhibitors (PPIs) are mainstays in managing acid-related disorders.
• Oral PPI therapy is highly effective for most patients.
• Some patients do not respond fully to standard PPI doses.

Purpose of the Study:

• To review the clinical indications and efficacy of intravenous (IV) PPI therapy.
• To compare the acid suppression of oral versus IV PPIs.
• To evaluate the role of IV PPIs in specific gastrointestinal conditions.

Main Methods:

• Literature review of studies on PPI efficacy and administration routes.
• Analysis of clinical data comparing oral and IV PPIs.
• Examination of guidelines for PPI use in various acid-related disorders.

Main Results:

• Oral and IV PPIs provide comparable acid suppression at equivalent doses.
• IV PPIs are indicated when oral administration is not feasible (e.g., GERD, peptic ulceration, Zollinger-Ellison syndrome).
• High-dose IV PPIs, particularly with initial bolus and infusion, are effective for nonvariceal upper GI hemorrhage, optimizing clot stability and reducing rebleeding risk.

Conclusions:

• IV PPIs are a valuable alternative to oral PPIs for patients unable to take oral medication.
• Profound acid suppression with IV PPIs is crucial for managing high-risk upper GI bleeding.
• While IV PPIs reduce gastric acidity in critical care and preoperatively, their broader clinical benefit in these settings requires further investigation.