Blackmores Vitamin B6 Blackmores Vitamin B6 is a sustained release formula to supply the nutrients gradually over several hours. Convenient one-a-day dosage for every day health. Vitamin B6 may be of benefit for the relief of pre-menstrual symptoms such as breast tenderness, mild fluid retention, irritability and fatigue. Blackmores Vitamin B6 helps to relieve pre-menstrual tension symptoms including: Breast-tenderness Mild Fluid retention Irritability Fatigue