That depends on your personal goals and your providers recommendations
To fine-tune your B12 injection schedule, it's essential to regularly monitor your levels and get help with understanding your B12 blood test results
While the effects of a vitamin B12 injected will become noticeable around 24 hours after administration, they will start to take effect almost immediately and will stay in your system for around 1 week, but may vary depending on the metabolic rate of the patient
Tip: The timeline for noticeable benefits depends on factors like baseline B12 levels, overall health, diet, stress, and lifestyle habits
Even if your diet includes B12-rich foods, your body might not be absorbing or utilizing the vitamin as well as it should
Combining tesofensine with stimulants (DMAA, ephedrine) or serotonergic compounds (SSRIs, MAO inhibitors) significantly increases cardiovascular events and serotonin syndrome risk