Chemotherapy with drugs like 5-fluorouracil has also been associated with acute thiamine deficiency by disrupting thiamine activation, so oncology patients receiving such therapy might receive parenteral thiamine supplementation as part of this B-Complex if needed
For ideal results, we recommend one injection per month
However, if you are ill, high doses of vitamin B12 that you might receive to treat a deficiency may cause some symptoms, such as: What to avoid while taking B12
If the platelet count falls within In these cases, a doctor may suggest monitoring the condition rather than treating it
You may have some pain, swelling or itching where you had the injection
Oral Vitamin B-12 Pills Oral vitamin B12 pills are an effective and convenient alternative for most people