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  1. Vitamin B-12 - Mayo Clinic

    Aug 13, 2025 · Vitamin B-12 is a vitamin the body uses to make and support healthy nerve cells. It's also used to make healthy red blood cells and the genetic material inside cells called DNA. Vitamin B-12 …

  2. Drugs and Supplements - Mayo Clinic

    Look up information about prescription drugs, over-the-counter medications, herbs, vitamins and supplements.

  3. Vitamin B-6 - Mayo Clinic

    Aug 13, 2025 · A vitamin B-6 deficiency is usually coupled with deficiency in other B vitamins, such as folic acid (vitamin B-9) and vitamin B-12. The recommended daily amount of vitamin B-6 for adults 50 …

  4. Vitamin deficiency anemia - Diagnosis & treatment - Mayo Clinic

    Sep 16, 2025 · Treatment for vitamin deficiency anemia involves taking the vitamin you don't have enough of. For pernicious anemia, you most often get vitamin B-12 in a shot. You may need to keep …

  5. Cyanocobalamin (intramuscular route) - Side effects & uses

    Feb 1, 2026 · Description Cyanocobalamin injection is used to treat or prevent vitamin B12 deficiency caused by the following conditions: Addisonian (pernicious) anemia Stomach or bowel problems …

  6. Vitamin a (oral route, intramuscular route) - Side effects & dosage

    Feb 1, 2026 · Although vitamin A is being used to prevent certain types of cancer, some experts feel there is not enough information to show that this is effective, particularly in well-nourished individuals. …

  7. Vitamin B-12 injections for weight loss: Do they work? - Mayo Clinic

    Mar 20, 2025 · Are vitamin B-12 injections helpful for weight loss? There's no solid proof that vitamin B-12 shots, also called injections, help you lose weight. Vitamin B-12 is a water-soluble B complex …

  8. Vitamin B-12 and depression: Are they related? - Mayo Clinic

    Feb 19, 2025 · Low levels of vitamin B-12 and other B vitamins may be linked to depression, but more research is needed. Vitamin levels can be checked using a blood test.

  9. Cyanocobalamin (nasal route) - Side effects & dosage - Mayo Clinic

    Feb 1, 2026 · Cyanocobalamin nasal spray is used to maintain normal vitamin B12 blood levels in patients with pernicious anemia who have achieved healthy vitamin B12 levels after receiving vitamin …

  10. Heartburn medicines and B-12 deficiency - Mayo Clinic

    Jul 9, 2024 · Some studies have found a link between heartburn medicines and low vitamin B-12 levels. Not having enough vitamin B-12 is called vitamin B-12 deficiency. Medicines to treat heartburn, also …