Vernonia amygdalina has been a known food and medicinal plants used in Asia and Africa (West Africa) due to its pharmacological effects (antioxidant, anti-diabetes, antiinflammatory, anticancer, anti-malaria, and among others). The phytochemical studies revealed that this plant is enriched with proteins, fats, fibres, amino acids, minerals, vitamins, and carbohydrates. Many bioactive compounds had been isolated from its extracts. Therefore, this review summarized the overview of the bioactive compounds, phytochemical and pharmacological properties of V. amygdalina as well as its mechanism of action and toxicology.

Different classes of solvents provide different polarity values, which influence the solubility of pharmaceutical solids. In this article, the solubility of mefenamic acid in different classes of organic solvents, including polar protic, dipolar aprotic, and apolar aprotics at a range of temperatures from (298 to 323) K are reported. It has been found that mefenamic acid shows high solubility in dipolar aprotic solvents (N,N-dimethylacetamide, N,N-dimethylformamide, ethyl acetate, and propanone), moderate solubility in polar protic solvents (ethanol and propan-2-ol), and poor solubility in apolar aprotic solvents (hexane, heptane, and cyclohexane) and water.

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