Xiyanping allergic reaction, most commonly erythema and pruritus around the injection site, but more rarely anaphylactic reactions may occur, which can be life-threatening. Also, andrographolide and related derivatives are known to be abortifacient, making xiyanping unsuitable for use in pregnant women. Xiyanping Xiyanping (喜炎平) is an anti-inflammatory and antiviral preparation developed and licensed for use in China. It is a semi-synthetic injectable product derived from the active component of the plant "Andrographis paniculata" (Chuan Xin Lian, 穿心蓮), which is used in Traditional Chinese medicine. Xiyanping is primarily composed of 9-dehydro-17-hydro-andrographolide and sodium 9-dehydro-17-hydro-andrographolide-19-yl sulfate. It is used mainly in the treatment
Henna a person has had a black henna tattoo and later dyes their hair with chemical hair dye, the allergic reaction may be life-threatening and require hospitalization. Because of the epidemic of PPD allergic reactions, chemical hair dye products now post warnings on the labels: "Temporary black henna tattoos may increase your risk of allergy. Do not colour your hair if: ... – you have experienced a reaction to a temporary black henna tattoo in the past." PPD is illegal for use on skin in western countries, though enforcement is difficult. Physicians have urged governments to legislate against black henna because