st Johns wort is a herbal antidepresent. I just use it for a few days or a week or so. I find it very effective...it's been used in Britain since the 1600's...it's just a plant extract from a plant called...you guessed it...St John's Wort...it grows everywhere.
Never heard of melletellysleepywotsit though...Horsechops will sell you some...nudge nudge...what have you done to the summer eh fizzy? ...