Lol, ex intravenous drug user for over 20 years - i already knew the dangers of putting 'unknown indeterminate substances' into ones body, whether for pleasure or otherwise. Listening to the gobblygook on tv, started researching, then also questioned my doctor - who had no idea either - just solidified my refusal. Especially his' It's probably best just to get it now rather than wait for all the clinical studies to finish' just fcking lol.