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The proper way to use

If you are taking vitamin B 12 intranasal gel:

  • Take it at least one hour before or one hour after hot foods or liquids
  • Check with your doctor for follow-up blood tests every 3 to 6 months.

For patients receiving vitamin B12 by injection for pernicious anemia or if part of the stomach or intestine has been removed:

  • You will have to receive treatment for the rest of your life. You must continue to receive vitamin B12 even if you feel well, in order to prevent future problems.

Dosing

The dose medicines in this class will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of these medicines. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For nasal dosage form (intranasal gel):
    • To prevent deficiency, you are given this dosage form only if you have received vitamin B12 by injection into the muscle and are in remission state:
      • Adults—500 mcg (0.5 mg) into the nostrils once a week.
  • For oral dosage forms (tablets or extended-release tablets):
    • To prevent deficiency, the amount taken by mouth is based on normal daily recommended intakes:
      • Adults and teenagers—2 micrograms (mcg) per day.
      • Pregnant females—2.2 mcg per day.
      • Breast-feeding females—2.6 mcg per day.
      • Children 7 to 10 years of age—1.4 mcg per day.
      • Children 4 to 6 years of age—1 mcg per day.
      • Children birth to 3 years of age—0.3 to 0.7 mcg per day.
      • Adults and teenagers—1 to 2 mcg per day.
      • Pregnant females—2 to 3 mcg per day.
      • Breast-feeding females—1.5 to 2.5 mcg per day.
      • Children 7 to 10 years of age—0.8 to 1 mcg per day.
      • Children 4 to 6 years of age—0.5 mcg per day.
      • Children birth to 3 years of age—0.3 to 0.4 mcg per day.
    • To treat deficiency:
      • Adults, teenagers, and children—Treatment dose is determined by prescriber for each individual based on the severity of deficiency.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

If you miss taking a vitamin for one or more days there is no cause for concern, since it takes some time for your body to become seriously low in vitamins. However, if your health care professional has recommended that you take this vitamin, try to remember to take it as directed.

Storage

Keep out of the reach of children.

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Do not keep outdated medicine or medicine no longer needed.