Medications for gastroesophageal reflux disease
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Proton Pump Inhibitors (PPIs) as First-Line Medications for GERD
Proton pump inhibitors (PPIs) are the mainstay and first-choice treatment for gastroesophageal reflux disease (GERD). They are highly effective in reducing stomach acid, alleviating symptoms, healing esophagitis, and preventing complications in most patients Savarino2017Kim2025Johnson1992+1 MORE. However, up to 20–40% of patients may experience inadequate symptom relief or persistent symptoms despite PPI therapy Savarino2017Kim2025Leowattana2022+1 MORE. For these patients, strategies such as optimizing adherence, increasing the dose, switching to a different PPI, or considering alternative medications are recommended Kim2025Hillman2017.
Potassium-Competitive Acid Blockers (P-CABs) and Their Role
Potassium-competitive acid blockers (P-CABs), such as vonoprazan, are a newer class of acid-suppressive drugs that provide rapid, potent, and long-lasting acid suppression. P-CABs have shown promising results, especially in patients who do not respond well to PPIs, and may be particularly useful for on-demand or noncontinuous therapy due to their quick onset of action Kim2025Leowattana2022Miyazaki2019+1 MORE. Studies suggest that P-CABs can be used as primary or add-on therapy to improve symptom control in refractory GERD cases Leowattana2022Miyazaki2019D’souza2024.
Adjunctive and Alternative Medications for GERD
For patients who do not respond to PPIs or P-CABs, several adjunctive and alternative medications may be considered:
- Histamine-2 Receptor Antagonists (H2RAs): These drugs can be used, especially at night, to control breakthrough symptoms, but are generally less effective than PPIs for severe GERD Johnson1992Hillman2017.
- Prokinetics: These medications aim to improve esophageal motility and gastric emptying. However, clinical trial results are inconsistent, and their use is generally reserved for specific cases Savarino2017Maradey-Romero2013Hillman2017.
- Reflux Inhibitors (e.g., Baclofen): Baclofen, a GABA agonist, can reduce reflux episodes and improve symptoms, particularly in patients with non-acid reflux or those with concurrent conditions like obesity or alcohol use disorder. Side effects are generally mild but more common with long-term use Savarino2017Arabpour2023.
- Antidepressants and Neuromodulators: These may help patients with non-erosive reflux disease (NERD) and visceral hypersensitivity, but more research is needed to confirm their effectiveness Savarino2017Kim2025Mungan2017.
- Mucosal Protective Agents: These drugs or medical devices reinforce the esophageal lining and can be used as add-on therapy in refractory cases Savarino2017Maradey-Romero2013Leowattana2022+1 MORE.
Maintenance and Noncontinuous Therapy Approaches
Long-term maintenance therapy is often required for patients with severe or recurrent GERD. Both continuous and on-demand (noncontinuous) therapy strategies are used. On-demand therapy, especially with P-CABs, is appealing for patients with mild or episodic symptoms, as it reduces medication exposure and cost while maintaining symptom control Kim2025D’souza2024. Sequential maintenance therapy, starting with daily medication and transitioning to on-demand use, can improve patient satisfaction and minimize drug exposure .
Considerations for Medication Selection and Risk Factors
The choice of medication should be tailored to the individual, considering the severity of symptoms, response to previous treatments, and potential side effects. Some drugs, such as certain anti-inflammatory agents, hormone therapies, and calcium channel blockers, can worsen GERD symptoms or contribute to its development by affecting esophageal motility or mucosal integrity . Objective testing may be necessary for patients who do not respond to standard therapies to confirm the diagnosis and guide further treatment Kim2025Hillman2017.
Conclusion
PPIs remain the cornerstone of GERD treatment, but a significant number of patients require alternative or adjunctive therapies. P-CABs, prokinetics, reflux inhibitors, neuromodulators, and mucosal protective agents offer additional options, especially for those with refractory symptoms. Individualized treatment plans and consideration of noncontinuous therapy approaches can help optimize symptom control and improve quality of life for GERD patients Savarino2017Kim2025Maradey-Romero2013+4 MORE.
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