Danshen Tablet consists of Salvia miltiorrhiza, which is not explicitly stipulated not to be used with methylcobalamin tablets in clinic, and can be used with the same medicine if corresponding indications occur. Dan Shen Tablet belongs to Chinese patent medicine, because it is good at activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), and it is used for treating chest paralysis caused by blood stasis and obstruction, which is characterized by pain in the chest and fixation of the pain area. Methylcobalamin tablets, on the other hand, is a western medicine that specializes in the treatment of peripheral neuropathy. If patients see both indications of the above two drugs at the same time, the two can be combined. However, it is recommended to take them half an hour apart. In addition, it is forbidden for those who are allergic to Salvia divinorum, and the adverse reactions are occasionally mild stomach discomfort. While methylcobalamin tablets may have adverse reactions such as nausea and vomiting, and should be contraindicated for those who are allergic to the product. It is recommended to use the medication after consulting a doctor, do not self-medicate.