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Graphical Abstract Introduction Allergic reactions to drugs and to antibiotics in particular, constitute important medical problems ( Figure 1 )
Naveed M, Zhou QG, Xu C, Taleb A, Meng F, Ahmed B, et al
Unlike oral supplements, these injections bypass the digestive system and deliver B12 directly into your bloodstream, making them ideal for people with absorption issues or chronic deficiency
The injection itself follows standard subcutaneous technique
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