Vitamin B12 is an important vitamin, and doctors sometimes inject it to help those with a vitamin deficiency avoid pernicious anemia
Vitamin B12 deficiency can be caused by blood count changes such as hyperchromic macrocytic megaloblastic anemia or nerve damage, e.g
Inform your healthcare provider about your diet, including any fortified foods you consume, to ensure you are getting the right amount of B12
And some medications, such as antidepressants, antihistamines for allergies, or opioids to treat pain, can reduce saliva production
Breathalyzers measure deep lung air not surface moisture so hydration has minimal impact on test results
Then, gently pinch or gather the skin at the injection site and insert the syringe into the skin