Introduction
Chronic cough associated with gastroesophageal reflux disease (GERD) is increasingly recognized as an extra-esophageal manifestation of reflux pathology.1 In Ayurveda, this clinical presentation is conceptually correlated with Kasa, particularly Pitta–Kaphaja Kasa, wherein deranged digestive and respiratory pathways contribute to persistent cough. The involvement of Annavaha Srotasa (digestive channels) along with Pranavaha Srotasa (respiratory channels) is considered central to disease manifestation. The reflux of gastric contents is interpreted as a pathological upward movement of Pitta and Kapha, leading to irritation of upper digestive and respiratory mucosa, thereby producing chronic cough, throat irritation, and mucoid expectoration.
Ayurvedic pathophysiological correlation
From an Ayurvedic standpoint, symptoms resembling GERD-associated chronic cough are aligned with Pitta–Kaphaja Kasa, where Agnimandya (impaired digestive fire) and Srotorodha (channel obstruction) are considered key pathogenic events. Disease progression is believed to occur due to vitiation of Annavaha Srotasa, which subsequently affects Pranavaha Srotasa, resulting in persistent cough, throat clearing, and sticky sputum production. The chronicity of inflammation is recognized as a sustained pathological response persisting over months to years, often described in modern terms as chronic resistant inflammation, which further perpetuates mucosal hypersensitivity and reflux-associated airway irritation.
Polyherbal and classical Ayurvedic formulations
In clinical Ayurvedic practice, Avipattikara Choorna has been widely employed for managing acid-related disorders associated with chronic cough. The formulation contains Trivrita (Operculina turpethum Linn.) and Sharkara, which have been attributed gastroprotective potential along with antioxidant and anti-inflammatory properties. These actions are considered beneficial in mitigating prolonged inflammatory states, thereby reducing chronic resistant inflammation affecting the gastrointestinal tract.
Similarly, Samasharkara Choorna is used as a supportive formulation, in which Lavanga (Syzygium aromaticum L.) plays a significant role. Polyphenolic constituents and eugenol present in Lavanga are associated with gastroprotective activity, even at low dosages, and contribute to mucosal protection and symptomatic relief in reflux-associated irritation.
Mucolytic and Kasahara herbs
A group of herbs including Jatiphala (Myristica fragrans Houtt.), Pippali (Piper longum L.), Maricha (Piper nigrum L.), and Shunthi (Zingiber officinale Roscoe) are recognized for their mucolytic properties. These agents are believed to act on both Pranavaha Srotasa and Annavaha Srotasa, thereby facilitating the removal of excessive and sticky mucus. As a result, relief from cough (Kasa) and reduction in whitish, viscous expectoration are achieved. Their role in enhancing Agni and reducing Kapha dominance further contributes to symptomatic improvement in GERD-associated chronic cough.
Additionally, Agastya Haritaki Avaleha is frequently co-administered with Samasharkara Choorna. This classical formulation is considered to possess Kasahara (antitussive) properties, acting on both respiratory and digestive channels. Its synergistic effect supports mucosal clearance, reduces throat irritation, and improves overall Srotasa function.
Integrated therapeutic perspective
The Ayurvedic approach to GERD-associated chronic cough emphasizes restoration of doshic balance, particularly addressing aggravated Pitta and Kapha. By targeting both digestive and respiratory pathways simultaneously, these formulations aim to break the pathological cycle of reflux-induced irritation and cough hypersensitivity. The combined use of gastroprotective, anti-inflammatory, and mucolytic herbs is considered essential in addressing both the root cause and symptomatology of the disorder.
Conclusion
Chronic cough associated with GERD can be effectively interpreted within the Ayurvedic framework as a manifestation of Pitta–Kaphaja Kasa involving dual impairment of Annavaha and Pranavaha Srotasa. Classical formulations such as Avipattikara Choorna, Samasharkara Choorna, and Agastya Haritaki Avaleha, along with mucolytic herbs like Pippali, Maricha, Shunthi, and Jatiphala, provide a comprehensive therapeutic strategy. Through their gastroprotective, anti-inflammatory, antioxidant, and mucolytic actions, these interventions help in reducing chronic inflammation, improving mucosal defense, and restoring physiological balance, thereby offering an integrative Ayurvedic approach to GERD-associated chronic cough.2
References:
- Wu J, Ma Y, Chen Y. GERD-related chronic cough: Possible mechanism, diagnosis and treatment. Front Physiol. 2022;13:1005404. Published 2022 Oct 20. doi:10.3389/fphys.2022.1005404 https://pmc.ncbi.nlm.nih.gov/articles/PMC9630749/
- Dixit NV, Goyal M. Approach to Chronic Cough Associated With Gastroesophageal Reflux Disease as Per Ayurveda: A Case Report. J. Ayurved Homeopath. Allied Health Sci. 2024;3(2):58-64. doi:10.4103/jahas.jahas_17_24. https://journals.lww.com/jaha/fulltext/2024/07000/approach_to_chronic_cough_associated_with.4.aspx