Precautions

It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly. Blood and other laboratory tests may be needed to check for unwanted effects.

Do not use folic acid in place of cyanocobalamin to treat your condition.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.