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Aller-7®

Toxicol Mech Methods. 2003;13(4):253-61. doi: 10.1080/713857188.
Safety of a novel botanical extract formula for ameliorating allergic rhinitis.
Amit A1, Saxena VS, Pratibha N, Bagchi M, Bagchi D, Stohs SJ.

Abstract

Allergic rhinitis (also known as hay fever) is the most commonly occurring immunological disorder, and it affects 40 million men, women, and children in the United States. Symptomatically, it is an inflammation and irritation of the mucous membranes that line the nose. Allergy is defined as a state of hypersensitivity or hyperimmunity caused by exposure to a particular antigen (allergen) that results in increased reactivity upon subsequent exposure. A novel botanical formulation, Aller-7/NR-A2, was developed for the treatment of allergic rhinitis; it is a combination of medicinal plant extracts from Phyllanthus emblica, Terminalia chebula, Terminalia bellerica, Albizia lebbeck, Piper nigrum, Zingiber officinale, and Piper longum. This novel formulation has demonstrated potent antihistaminic, anti-inflammatory, antispasmodic, antioxidant, and mast-cell-stabilization activities. All of the doses for these toxicity studies were selected according to the guidelines of the Organization for Economic Cooperation and Development, the World Health Organization, and the Environmental Protection Agency. Acute toxicity of Aller-7 was evaluated in Swiss Albino mice at doses of 125, 250, 500, 1000, and 1500 mg/kg. After 15 days of treatment, the animals were sacrificed. No histopathological changes were observed in major vital organs. A similar study was conducted in Albino Wistar rats, which were sacrificed at the end of 15 days. No histopathological changes or toxicity was observed at up to 2 g/kg body weight. Subacute toxicity was conducted in Albino Wistar rats at a dose of 90 mg/kg body weight for 3 days, then at 180 mg/kg for the next 3 days, and then at 270 mg/kg for 3 weeks. After 28 days, the animals were sacrificed and tested; no toxicity was observed. In a subchronic toxicity study, there was no observed adverse effect level at 1 g/kg body weight in rats. In a teratological assay, at doses of 3.0 g/kg (20 times the recommended dose) and 1.8 g/kg, respectively, no visceral or skeletal anomalies were observed in the fetuses. No maternal changes were observed when Aller-7 was administered during gestation and lactation. No evidence of mutagenicity was observed at doses up to 5000 mug per plate of Aller-7 in Salmonella typhimurium cells. The present study evaluated the safety of Aller-7 by conducting several in vitro and in vivo studies. Further studies of the 90-day chronic toxicity of Aller-7 are currently in progress.

http://www.ncbi.nlm.nih.gov/pubmed/20021150

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