Acid-suppressive therapy use associated with antihypertensive agents

Area of Science:

• Gastroenterology
• Cardiology
• Pharmacology

Background:

• Nitrates and calcium channel blockers (CCBs) can reduce lower esophageal sphincter pressure.
• This reduction may potentially trigger or worsen gastroesophageal reflux disease (GERD).

Purpose of the Study:

• To investigate the association between antihypertensive medications (nitrates, CCBs, alpha-1 antagonists) and the use of acid-suppressive therapy in hypertensive patients.
• To determine if specific classes of antihypertensives correlate with increased acid-suppressive drug utilization.

Main Methods:

• Retrospective cohort study design.
• Analysis of acid-suppressive drug use (histamine2 antagonists, proton pump inhibitors) in 15,662 treated hypertensive patients.
• Assessment of odds ratios for acid-suppressive therapy associated with nitrate, CCB, and alpha-1 antagonist use.

Main Results:

• Twenty percent of the studied hypertensive patients used acid-suppressive therapy.
• Increased use of acid-suppressive therapy was significantly associated with nitrate (OR=1.71), CCB (OR=1.46), and alpha-1 antagonist (OR=1.32) use.
• The association appeared additive when patients used two or more of these agents; no significant difference was found among individual CCBs.

Conclusions:

• Nitrates, CCBs, and alpha-1 antagonists are associated with increased acid-suppressive drug use in hypertensive patients.
• The combined use of these antihypertensives may lead to additive effects on acid reflux medication needs.
• Further research is warranted to understand the clinical and economic implications of these findings.