January 2008 in “中山醫學大學醫學研究所學位論文” Danthron from Rhubarb causes melanoma cells to stop growing and die.
183 citations
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January 1987 in “British Journal of Anaesthesia” Opioid painkillers can cause many side effects, including breathing problems and addiction, but are generally considered safe when used properly.
23 citations
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January 2001 in “International journal of toxicology” St. John's Wort extract and oil safety in cosmetics is unclear; more data needed on photosensitization, toxicity, and human irritation.