Very high doses (such as those used for cyanide poisoning) should be used with caution and only if the potential benefit outweighs the risk
Poor hygiene or reused needles can cause infection, and an injection placed badly can rarely irritate a nerve
The liver can store the vitamin for a long time, so it may take a few years for deficiency and symptoms to develop
The step by step is outlined in the link for performing a subcutaneous injection, and we strongly recommend thoroughly reading the instructions, but more importantly, to receive training by a medical professional before you do it yourself in the comfort of your own home
Family Medicine Board-certified Family Medicine physician with 20+ years in wellness, nutrition, and whole-person care
Conclusion So, are B12 injections stronger than tablets