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The multiple mechanisms of action of medicinal plants in GERD other than anti-secretory properties appear to provide more efficient treatment and helped to manage the histopathological changes associated with this disorder. Further studies are needed to understand the effects of medicinal plants on GERD better.

Background. In traditional Persian medicine, Drimia maritima, with the popular name Squill, has been used to alleviate phlegm dyspnea. Squill has also been shown to have anti-inflammatory and anticholinergic properties. The goal of this research was to see how effective and safe Squill-Oxymel was in treating COPD patients. Method. Forty-two COPD patients were examined for eight weeks in two groups. Patients underwent a 6-minute walk test to assess the treatment’s effectiveness at the beginning and conclusion of the intervention. We utilized St. George’s Respiratory Questionnaire (SGRQ) to evaluate the subjective symptoms of patients in order to measure their quality of life. Results. Patients who received Squill-Oxymel showed a statistically significant increase in 6MWT distance ( P = 0.011 ). The mean O2 saturation at the end of the 6MWT before the intervention was significantly greater in the placebo group. ( P = 0.008 ). In terms of questionnaire variables, there was a significant difference between placebo and Squill-Oxymel groups in the mean presymptom score ( P = 0.009 ) and the mean post-symptom score ( P = 0.004 ). Conclusions. The findings of this research provide preliminary evidence for the effectiveness and safety of Squill-Oxymel as an add-on therapy in individuals with mild COPD.

Laūq is a pharmaceutical dosage form that had been mainly used for the treatment of various respiratory disorders in traditional Persian medicine. It is important from 2 aspects: a dosage form with efficient and optimum delivery of drugs to the respiratory tract and biological effects of its ingredients. Natural medicine in laūq has been demonstrated to act in respiratory disorders by their antitussive, antiallergic, anti-inflammatory, antioxidant, spasmolytic, and antibacterial activities. Some of these natural remedies act by most of the mentioned mechanisms such as Cydonia oblonga, Glycyrrhiza glabra, Crocus sativus, Hyssopus officinalis, Foeniculum vulgare, and honey. However, the evidence is limited including Cassia fistula, Papaver somniferum, and Drimia maritima. According to positive pharmacokinetic and pharmacodynamic aspects of laūqs, they may be considered as efficient dosage forms for delivery of drugs to the respiratory tract. For better compatibility of patients, it could be substituted laūqs with newer drug delivery systems like lozenges.