They are often prescribed for individuals who are unable to absorb the vitamin effectively through oral supplements
In rare cases, Vitamin B6 deficiency can lead to seizures
High doses, often used to treat deficiencies, may lead to: Headaches, nausea, vomiting, and diarrhea Fatigue or muscle weakness Skin reactions such as rashes or itching Tingling or numbness in extremities Dizziness and, in severe cases, pulmonary edema and congestive heart failure Rare conditions like polycythemia vera, a slow-growing blood cancer In extremely rare cases, vitamin B12 can cause serious allergic reactions (anaphylaxis), characterized by facial swelling, difficulty breathing, and swallowing issues
Your vitamin B12 levels can be accurately checked by a simple blood test, which is important for your doctor to know what amounts of Vitamin B12 are suitable for your health requirements