%0 Journal Article %T Acute and Sub-Acute Toxicity of Ethanolic Leaf Extracts of <i>Rumex abyssinica</i> Jacq. (Polygonaceae) and <i>Mentha spicata</i> L. (Lamiaceae) %A Maud Kamatenesi Mugisha %A James Gakunga Ndukui %A Agnes Namutembi %A Paul Waako %A Ann-Karl Borg Karlson %A Patrick Vudriko %J Pharmacology & Pharmacy %P 309-318 %@ 2157-9431 %D 2014 %I Scientific Research Publishing %R 10.4236/pp.2014.53038 %X
Rumex abyssinica Jacq. (Polygonaceae) is locally used in management of allergies and female reproductive healthcare; whereas Mentha spicata L. (Lamiaceae) is used to treat gastrointestinal and respiratory distress, dandruff, halitosis and malaria in Uganda. Owing to the paucity of data on their safety profiles, this study evaluated the acute and sub-acute toxicities of 70% ethanolic leaf extracts of both plants in mice and Wistar albino rats. The oral acute toxicity of both plants was evaluated in Swiss mice of 7-8 weeks old (16-22 g) body weight and LD50 determined. Sub-acute toxicity was evaluated in Wistar albino rats (6 per group) at dose rates of 500, 1000 and 1500 mg/kg for 28 days. The LD50 of R. abyssinica and M. spicata in mice was 7727 mg/kg and 13,606 mg/kg body weight, respectively. General signs of toxicity due to large doses of both plants extract included hyperurination, abdominal muscle twitches and convulsions. In the sub-acute toxicity test, rats treated with both extracts did not exhibit any clinical signs %K Histopathology %K < %K i> %K Mentha spicata %K Rumex abyssinica< %K /i> %K Toxicity %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=44242