can b12 injections have side effects

http://static1.squarespace.com/static/570b83697da24f23ceb8c636/5b8403124ae237f5ab3cb098/5cc6c525b2512d000194af30/1788539652856/ChatGPT+Image+May+31%2C+2026%2C+03_51_34+PM.png?format=1500w Animal_Horse Size:1000 mcg/ml - 30 ml x 5 Mechanism of action 5-Amino-1MQ inhibits NNMT, the enzyme that methylates nicotinamide using S-adenosylmethionine B12 & B-Complex Injections for Energy Boost

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