Vitamin B6, also known as Pyridoxine, is one of the vitamins included in the vitamin B complex family. This vitamin maintains healthy blood vessels, supports brain function, improves mood, helps treat anemia, protects eye health, can help prevent or reduce symptoms of Rheumatoid Arthritis, helps treat high blood pressure, helps relieve symptoms of Premenstrual Syndrome, helps decrease nausea during pregnancy, can help treat asthma, helps regulate sleep cycles, and prevents kidney stones. The recommended daily allowance for vitamin B6 depends on your age and gender : 0.3 milligrams for infants of 1–6 months, 0.6 mg for children aged between 1 and 8 years, 0.6 to 1 mg for children aged between 4 and 16 years. Boys between 14 and 18 years should have 1.2 to 1.3 milligrams, men and women aged between 19 and 50 years 1.3 milligrams, men aged 51 years and above 1.7 milligrams ; women 51 years and older: 1.5 milligrams ; pregnant women: 1.9 milligrams; and breastfeeding women: 2.0 milligrams. All B vitamins are water-soluble, meaning they will be flushed out of the body and dissolved in your urine if you acquire too much of them. For this reason, there isn’t usually much concern with overdosing on vitamin B6 or reaching toxic levels; however, in rare instances too much vitamin B6 can cause some unwanted reactions. When someone has too much vitamin B6 within their body, reactions including muscle numbness, confusion and other unpleasant temporary symptoms may occur.