Oral medications for asthma
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Oral Corticosteroids for Asthma: Indications, Effectiveness, and Risks
Oral corticosteroids (OCS) are widely used in asthma management, especially for severe cases and acute exacerbations. They are highly effective at reducing airway inflammation and controlling symptoms when inhaled therapies are insufficient or during severe attacks Chan2022Ramsahai2018Haughney2023+2 MORE. Guidelines recommend OCS as a short-term intervention for acute asthma attacks and, in select cases, as maintenance therapy for severe, treatment-resistant asthma Chan2022Ramsahai2018Haughney2023+1 MORE. In pediatric care, the oral route is preferred for managing asthma exacerbations, with ongoing debate about the optimal dosing regimen .
However, long-term or frequent use of OCS is associated with significant risks, including increased morbidity, mortality, and adverse effects such as weight gain, mood disturbances, and skin changes Gaga2019Chan2022Haughney2023+1 MORE. Evidence supporting the benefits of long-term OCS use is limited, and their use should be minimized and reserved as a last resort Gaga2019Haughney2023Blakey2021. Recent recommendations emphasize OCS stewardship, urging clinicians to limit cumulative doses and consider specialist referral if annual exposure exceeds certain thresholds Haughney2023Blakey2021.
Oral Steroid Regimens: Dosing and Duration
There is no strong evidence that higher doses or longer courses of oral steroids are more effective than lower doses or shorter courses for acute asthma exacerbations Normansell2016De Filippo2020. Studies comparing different regimens (e.g., prednisolone vs. dexamethasone, short vs. long courses) have not shown clear differences in outcomes or adverse events, but the quality of evidence is low and more research is needed Normansell2016De Filippo2020. In children, both single-dose and multi-day regimens are used, but the best approach remains unclear .
Alternative Oral Medications: Theophylline and Salbutamol
In low-resource settings where inhalers are expensive or unavailable, oral medications like theophylline (as a preventer) and oral salbutamol (as a reliever) are sometimes used as alternatives . These options may improve access and adherence in such contexts, though they are generally less preferred than inhaled therapies due to side effects and less targeted delivery .
Novel Oral Asthma Treatments
Research into new oral asthma medications is ongoing. One promising candidate, MIDD0301, targets GABAA receptors in the lung and has shown potential to relax airway smooth muscle and reduce inflammation in animal models, with a favorable safety profile . Such developments may offer future alternatives to traditional oral corticosteroids.
Real-World Use and Challenges
Despite guidelines favoring inhaled therapies, oral medications remain widely used in some regions, often due to underdiagnosis, limited access to inhalers, or lack of training in inhaler use Dhar2021Daga2025. Studies have found that patients relying on oral anti-asthma medications often have poor asthma control and higher rates of hospitalizations, highlighting the need for better diagnosis and management strategies .
Conclusion
Oral medications, especially corticosteroids, play a critical role in managing severe asthma and acute exacerbations, but their use should be carefully limited due to significant risks. Inhaled therapies remain the preferred option for most patients, with oral alternatives considered mainly in severe cases or resource-limited settings. Ongoing research and stewardship efforts aim to reduce reliance on oral corticosteroids and improve overall asthma care Gaga2019Chan2022Ramsahai2018+2 MORE.
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Most relevant research papers on this topic
Oral corticosteroids in asthma and beyond: moving forward
Oral corticosteroids are essential for severe asthma attacks and maintenance therapy, but their use is associated with short- and long-term adverse effects, requiring stewardship strategies to minimize their use.
Appropriate use of oral corticosteroids for severe asthma
Oral corticosteroids are an important tool in managing severe asthma, but future work should focus on optimizing efficacy and safety, and developing agents that allow reduction or discontinuation of their use.
Assessment of asthma control in users of oral anti-asthma medications.
Poor asthma control and increased hospitalizations in India are likely due to underdiagnosis and inappropriate management of oral anti-asthma medications.
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