Your doctor will give you the right dosage of vitamin B12 supplement, especially if you will inject it. Taking too much can cause side effects like nausea, headache, dizziness, and, in some cases ...

Instead, we use a sublingual (under-the-tongue) liquid form, which is absorbed directly into the bloodstream—bypassing digestion entirely. This method is similar to B12 injections, offering faster and ...

If you are using the liquid form of this medication ... Doing so can release all of the drug at once, increasing the risk of side effects. Swallow the tablets whole. If you are taking the chewable ...

If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects ... vitamin B12 levels) may be ...