Has anybody any knowledge or experience of IM injections of vitamin C? I have sourced Vit C ampoules and would like to add it to my bi weekly B12 for added health benefits. I can only find info online regarding IV Vitamin C. The box clearly states for IM and IV use but I would only be comfortable using it as an IM injection. My main fear is pain, Vitamin C is an acid (absorbic acid) so I'm nervous that it would be painful as an IM injection, and that's why the prefered method seems to be IV. Google has not offered much info. Anyone used or uses Vit C along with their B12?