Andersson, Emmanuel Shapira, Biochemical and clinical response to hydroxocobalamin versus cyanocobalamin treatment in patients with methylmalonic acidemia and homocystinuria (cblC), The Journal of Pediatrics, Volume 132, Issue 1, January 1998, Pages 121-124, ISSN 0022-3476, Gimsing P, Hippe E, Helleberg-Rasmussen I, et al
But again, check with a healthcare pro before adding a supplement to your lineup
More discomfort Intramuscular injections typically require larger needles, which can be more difficult to self-administer and often cause more irritation
Following these guidelines helps you achieve the best and longest-lasting results
This also applies for testing MMA and homocesteine