Which B vitamins are relevant?
B6, B12, folate, niacin, thiamine and biotin all contribute to normal psychological function. A B-complex covers them together, which is usually more sensible than picking one.
How long before I can tell if something suits me?
Herbal preparations are generally given several weeks. Nutrients such as B vitamins and magnesium are taken as an ongoing daily supplement rather than a short course.
Can I take these with antidepressants?
Not without checking. St John's Wort in particular has well-documented interactions with antidepressants and much else. Speak to your GP or pharmacist first.
Will these make me sleepy?
B vitamins and magnesium are not sedatives. Some traditional preparations - valerian, passionflower - are intended for the evening, and the pack will say, including any warning about driving.
