Yes, when taken under medical supervision and within recommended limits
Heffernan M et al
[15] [16] The sign outside, above the shop's door, read: "Eli Lilly, Chemist." [12] [17] The Indiana Historical Society recreated a replica of the first Lilly laboratory on Pearl Street for its exhibition, "You Are There: Eli Lilly at the Beginning ," at the Eugene and Marilyn Glick Indiana History Center in Indianapolis
Therefore, it remains important to carefully consider which concentrations to administer in mouse models, and to consider extensive dose-response studies
Typical Dosage Range Most men with low vitamin B12 levels receive around 1,000 mcg per injection, depending on their blood levels and health goals.( 9 ) However higher doses, as much as 2,000 mcg can also be safe in some cases