B₆ tablets usually refer to vitamin B₆ tablets. They are usually taken for about three weeks, but you need to follow your doctor’s instructions on exactly how long to take them. Vitamin B₆ tablets are more commonly used to prevent and treat conditions caused by vitamin B₆ deficiency, such as seborrheic dermatitis and chapped lips, and to reduce vomiting in pregnancy. It is usually taken for about three weeks. The number of doses and the duration of treatment are not clearly defined, and can be used in conjunction with the body’s condition under the guidance of a doctor. However, it is not recommended that patients use it for a long time or overdose, because overdose and long-term use may cause more serious adverse reactions such as peripheral neuritis, neurosensory abnormalities and gait instability. Excessive amounts of vitamin B₆ received by pregnant women can result in vitamin B₆ dependence syndrome in newborns. It is prohibited for those who are allergic to any of the ingredients in this product, and stop taking the drug after three weeks of use.