Today I was administered with my first Hydroxocobalamin B12 shot - 6 hours later and after 'plugging' (please dont make me explain) some further b12 capsules in the form of 'Mecobalamin' starting to get concerned that If I continue like there may be a danger of Vitamin B overdose. Taken today: Mecobalamin 1500ug IV Hydroxocobalamin 1000mcg Vitamin B complex Is this safe or I am just worrying about nothing? thanks in advance By the way im feeling pretty buzzed...*cough, I mean feeling like I should.... - im not sure if its the B12 injection or not yet but I think its highly likely which is a good sign. EDIT: Is it safe to plug B12??!