If the numbness of the tongue is caused by peripheral neuropathy and megaloblastic anemia (due to vitamin B12 deficiency), taking methylcobalamin has some effect, but the specific efficacy varies from person to person.
1. Peripheral neuropathy: common infectious diseases (such as herpes zoster), immune-mediated factors (such as tuberculosis), metabolic factors (such as diabetes mellitus), paraneoplastic and paraproteinemic factors, genetic degenerative disease factors, nerve compression symptoms, medications, toxins, etc., this kind of peripheral neuropathy caused by the numbness of the tongue, taking methylcobalamin has a certain effect.
2. Megaloblastic anemia: due to lack of vitamin B12 caused by megaloblastic anemia, in addition to numbness of the tongue, but also can appear lingual inflammation and tongue pain, the whole tongue is “fresh beef-like”, the papilla of the tongue is atrophied and smooth, such patients with intravenous injection of methylcobalamin has a certain effect.
Note that methylcobalamin is contraindicated in patients with a history of allergy to methylcobalamin or any of the excipients in the prescription; some patients may experience anaphylactic reactions such as a drop in blood pressure and respiratory distress when taking the drug. Mecobalamin is effective in the above diseases, but it is usually ineffective in cases such as numbness of the tongue caused by cerebrovascular disease.
If you need to use the drug, please use under the guidance of a doctor, do not blindly self-medication.