B12 is an essential vitamin. Everyone needs it to stay healthy. B12 helps your body work properly. It protects your nerve cells so they can grow the right way. B12 also helps make red blood cells, which give oxygen to the tissues in your body.


A low amount of B12 in the body could be due to dietary restrictions, a vegan or vegetarian lifestyle, medical conditions that affect the digestive system, or proton pump inhibitors to treat acid reflux. B12 deficiency could also be caused by a health condition, such as Crohn's disease, multiple sclerosis, celiac disease, or HIV/AIDS.

Talk to your doctor about being screened for B12 deficiency. Vitamin B12 deficiency has a wide range of non-specific symptoms. Symptoms may include:

  • Numbness, tingling in hands, legs, and/or feet
  • Fatigue
  • Shaky movements
  • Poor memory/confusion
  • Loss of balance
  • Trouble walking

*Patients may redeem this offer ONLY when accompanied by a valid prescription for NASCOBAL® Nasal Spray. Offer is valid for costs exceeding $25 to a maximum benefit of $100. Offer is not valid for patients whose prescriptions are reimbursed in whole or in part under Medicaid, Medicare, Medigap, VA, DoD, TRICARE, or any other federal or state programs (such as medical assistance programs) or where prohibited by law. Offer is not valid in VT or where prohibited in whole or in part. This offer may be amended or ended at any time without notice.