hello Mr. Jha, I am Dr. Deepak. You have been acitrom for a long time. You will be kowning about the Acitrom, the precaution you are supposed to take. now that your doctor has prescribed Mecabalamin, which is a multi-vitamin. You can take with acitrom. There is no contraindication or interaction. It is mainly Vitamin B12, which helps with increasing blood count and for nerve repair or pain. if you take more also nothing will happen as it is water soluble, whatever that is excess will be removed by the kidney. Thank you Hope your concern is resolved.