Methylcobalamin tablets are best used by pregnant women as prescribed by their doctor. Methylcobalamin Tablets are mainly used for the treatment of peripheral neuropathy, according to the Medication Guide for Methylcobalamin Tablets, although methylcobalamin did not show teratogenic effects in animal experiments, its safety in pregnant women is not yet clear. It is also not clear whether methylcobalamin is secreted through women’s milk, but animal studies have reported that methylcobalamin is secreted in milk, and its safety in lactating women is unclear. Although it is not clearly stated that pregnant women and lactating mothers prohibit the use of the drug, methylcobalamin tablets in animal experiments did not find the role of self-excitation, but because of the clinical use of the drug in pregnant women in the experimental research data is relatively small, it is not possible to determine pregnant women taking methylcobalamin tablets must be no problem. Therefore, if pregnant women have peripheral neuropathy, if the disease needs, you can take under the guidance of the doctor. Do not blindly take the drug yourself. Pregnant women should pay attention to regular maternity checkups during pregnancy. If at any time there is abdominal pain or abnormal vaginal bleeding and other discomforts to consult a doctor at any time.