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Article

Preclinical Studies on Plant Based-Antacid Formulations as New Therapies for Gastro-Oesophageal Reflux Disease

1
Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via D. Montesano, 49, 80131 Naples, Italy
2
Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via F. Delpino 1, 80137 Naples, Italy
3
Neilos S.r.l., Via Bagnulo, 95, Piano di Sorrento, 80063 Naples, Italy
4
Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
5
Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100, 80055 Portici, Italy
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Pharmaceuticals 2026, 19(1), 173; https://doi.org/10.3390/ph19010173
Submission received: 25 September 2025 / Revised: 15 January 2026 / Accepted: 16 January 2026 / Published: 19 January 2026
(This article belongs to the Special Issue New and Emerging Treatment Strategies for Gastrointestinal Diseases)

Abstract

Background/Objectives: Gastro-oesophageal reflux disease (GERD) refers to a disease in which stomach acid rises into the oesophagus. Currently, proton pump inhibitors (PPIs) are the most commonly used medications to treat GERD. However, long-term use of PPIs is not free from side effects, and new treatment strategies are needed. The present study was conducted to evaluate the gastroprotective potential of four different formulations containing both antiacids and medicinal plants considered useful for the treatment of GERD. Methods: The protective effects of the formulations on gastric ulcers in pyloric ligation-induced gastric mucosal lesions in mice were evaluated by measuring gastric emptying, the ulcer index, gastric content, total acidity, and the pH of the gastric fluid. Gastric damage was also assessed by measuring myeloperoxidase (MPO) activity. Results: Formulations containing Glycyrrhiza glabra L. or Glycyrrhiza glabra L. plus Opuntia ficus-indica Mill. and Olea europaea L. (formulations 3 and 4, respectively) increased gastric emptying. All formulations decreased gastro-oesophageal damage (ulceration and MPO activity) and gastric contents and had no effects on total acidity or gastric fluid pH in the pyloric ligation ulcer model. Conclusions: Our results show that all formulations are able to exert cytoprotective and anti-ulcerative effects. However, among the formulations, formulation 4 seems to be the most promising because of its better effects on gastric injury and gastric emptying. These results support the hypothesis of the possible use of medicinal plants in combination with antacid agents in the treatment of GERD.
Keywords: gastro-oesophageal reflux disease; antacids; medicinal plants; gastroprotection; pyloric ligation model; gastric ulcers; myeloperoxidase (MPO) activity; gastric emptying; cytoprotective effects gastro-oesophageal reflux disease; antacids; medicinal plants; gastroprotection; pyloric ligation model; gastric ulcers; myeloperoxidase (MPO) activity; gastric emptying; cytoprotective effects
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MDPI and ACS Style

De Cicco, P.; Cacciola, N.A.; Amico, R.; Romano, B.; Di Maio, U.; Milic, N.; Bagnulo, A.; Nanì, M.F.; Viscovo, L.; Scivicco, M.; et al. Preclinical Studies on Plant Based-Antacid Formulations as New Therapies for Gastro-Oesophageal Reflux Disease. Pharmaceuticals 2026, 19, 173. https://doi.org/10.3390/ph19010173

AMA Style

De Cicco P, Cacciola NA, Amico R, Romano B, Di Maio U, Milic N, Bagnulo A, Nanì MF, Viscovo L, Scivicco M, et al. Preclinical Studies on Plant Based-Antacid Formulations as New Therapies for Gastro-Oesophageal Reflux Disease. Pharmaceuticals. 2026; 19(1):173. https://doi.org/10.3390/ph19010173

Chicago/Turabian Style

De Cicco, Paola, Nunzio Antonio Cacciola, Rebecca Amico, Barbara Romano, Umberto Di Maio, Natasa Milic, Antonino Bagnulo, Maria Francesca Nanì, Laura Viscovo, Marcello Scivicco, and et al. 2026. "Preclinical Studies on Plant Based-Antacid Formulations as New Therapies for Gastro-Oesophageal Reflux Disease" Pharmaceuticals 19, no. 1: 173. https://doi.org/10.3390/ph19010173

APA Style

De Cicco, P., Cacciola, N. A., Amico, R., Romano, B., Di Maio, U., Milic, N., Bagnulo, A., Nanì, M. F., Viscovo, L., Scivicco, M., Capasso, R., Pagano, E., & Borrelli, F. (2026). Preclinical Studies on Plant Based-Antacid Formulations as New Therapies for Gastro-Oesophageal Reflux Disease. Pharmaceuticals, 19(1), 173. https://doi.org/10.3390/ph19010173

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