Inositol - has anyone tried it?

it is a vitamin (b8) ... it has a calming effect which is probably why it is considered helpful in the treatment of depression, ocd and anxiety disorders and it doesn't have the side effects of prescription meds ........ deficiency can lead to, among other things, irritability, mood swings and skin eruptions ..... important to note is that large amounts of caffeine may cause a shortage of inositol !! ....