I've deliberately gone 12 weeks between injections, just to see if it made any/much difference
Rizzo G, Lagan AS, Rapisarda AM, La Ferrera GM, Buscema M, Rossetti P, Nigro A, Muscia V, Valenti G, Sapia F, Sarpietro G, Zigarelli M, Vitale SG
Vitamin B12 injection effects can include: Soreness or slight bruising where the needle goes in A warm feeling right after the injection Mild headache in some people, which usually passes quickly Rare allergic reactions, which is why a health check happens first Vitamin B12 injection painful is a common worry, but most people describe it as a quick pinch rather than anything severe
Whether youre dealing with fatigue, low mood or you simply want a boost, B12 injections deliver targeted results that oral supplements often cant match
Allergies and medical conditions Those with allergies or medical conditions should always inform a doctor before receiving a vitamin B12 shot
1 2 3 Vitamins in Animal and Human Nutrition (2nd ed.)