Vitamin B6 commonly used dosage forms such as tablets, ointments, etc., the specific dosage needs to be used under the guidance of a doctor, and the dosage of each person’s medication varies. ⒈ vitamin B6 tablets: for oral use. Adults 1~2 tablets a day; children 0.5~1 tablets a day for 3 weeks. This drug is suitable for the treatment and prevention of vitamin B deficiency, can treat the phenomenon of vomiting in pregnancy, prevention of isoniazid poisoning. Long-term use of this drug can cause severe peripheral neuritis, abnormal sensation, gait instability and other adverse reactions. Pelletizing vitamin B6 ointment: it is a topical medicine, which is applied to the affected area 2-3 times a day. This medication is used for rosacea, seborrheic eczema, wrinkled skin syndrome, and acne. Adverse reactions such as a burning sensation in the skin, rash, and itching may occur when applying this medication. This drug is contraindicated in patients who are allergic to any of the ingredients in vitamin B6. The above mentioned medication should be used under medical supervision and should not be used blindly on its own to avoid adverse effects.