high dose b12 injection side effects How Fast Does Work How soon do you feel less tired after a B12 shot? Are Vitamin B12 Shots Right

Before taking Vitamin B12 Injection, inform your doctor if you: Are allergic to Vitamin B12 or cobalt Have any other food or medicine allergies An eye disease called as Leber's optic neuropathy A slow growing blood cancer where your bone marrow makes too many red blood cells (polycythemia vera) Gout (high uric acid levels in body) Iron or folic acid deficiency anemia Low potassium levels in your blood Drug interactions It is important to tell your healthcare professional about all other medicines that you have taken recently including any kind of supplements and non-prescription drugs

Int J Med Sci

However, its always good to check with your healthcare provider if youre experiencing heavy periods that interfere with your daily life

Annals of Clinical and Translational Neurology 5(6):777783

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Some things to consider are: Medical history : Your healthcare provider will look at your overall health and any existing conditions like diabetes, heart disease, or allergies