How To Inject Vitamin B12?

Can I inject B12 at home?

Vitamin B12 is available in oral supplements, B12 injections administered by a healthcare professional, and B12 shots from home. A vitamin B12 deficiency has to be determined by a doctor, but knowing what the symptoms are can better-equip you to know when to reach out and make the appointment.

Is vitamin B12 injections subcutaneous or intramuscular?

Cyanocobalamin is usually administered by IM or deep subcutaneous injection. If the drug is administered subcutaneously, care should be taken to avoid injection into the dermis or upper subcutaneous tissue. Because the drug is excreted more rapidly after IV injection, the IV route should be avoided.

How is B12 injection given?

This medication is given by injection into a muscle or under the skin as directed by your doctor. Dosage is based on your medical condition and response to treatment. Injections may be given daily when you first start treatment.

What is the best form of injectable B12?

The bottom line



The body may absorb cyanocobalamin better, while methylcobalamin has a higher retention rate. Both can prevent B12 deficiency, but methylcobalamin should be combined with adenosylcobalamin for best results.

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How dO you make a B12 syringe?

How to draw up B12 (labeled as Methylcobalamin) Injections

  1. Wash your hands.
  2. Remove the plastic cap and wipe down the rubber stopper on the top of the bottle with an alcohol swab or cotton soaked with alcohol.
  3. Take the 3ml syringe out of the the package, remove tip cover avoiding contact with the tip of syringe.
  4. Pull back plunger and drawback air to the 1ml mark on the syringe.

How long do B12 injections last?

If your vitamin B12 deficiency is not caused by a lack of vitamin B12 in your diet, you’ll usually need to have an injection of hydroxocobalamin every 2 to 3 months for the rest of your life.

How often can you have B12 injections?

The usual dose for pernicious anemia-associated vitamin B12 deficiency is 100 mcg given as an injection into the muscle or under the skin once daily for 6-7 days. Then the dose may be given every other day for 7 doses followed by every 3-4 days for around 3 weeks. Then, 100 mcg should be injected every month for life.

What are the side effects of B12 injections?

B12 shot side effects include, but are not limited to:

  • Swelling at the injection site.
  • Mild diarrhea.
  • Itching.
  • Swelling in the body.
  • Low potassium.
  • Headache.
  • Dizziness.
  • Vomiting.

What medications should not be taken with B12?

Certain medications can decrease the absorption of vitamin B12, including: colchicine, metformin, extended-release potassium products, antibiotics (such as gentamicin, neomycin, tobramycin), anti-seizure medications (such as phenobarbital, phenytoin, primidone), medications to treat heartburn (such as H2 blockers

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What are the benefits of a B12 injection?

An injection of B12 can bring on immediate health benefits.

  • Increases Energy Levels and Concentration.
  • Improves Metabolism and Helps With Weight Loss.
  • Boosts the Immune System.
  • Helps Improve Sleep Patterns.
  • Helps Stop Certain Types of Hair Loss.

Are B12 Injections Safe?

Safety and Side Effects



Vitamin B12 injections are generally considered to be very safe. They have no major side effects. However, in very rare cases, some people can experience side effects caused by allergic reactions or sensitivity ( 29, 30 ). If you experience any side effects, speak with your doctor.

What is the best way to absorb B12?

We already know from Harvard that B12 absorption can be increased by taking folate (another B vitamin, this one found in higher amounts in chickpeas, liver, pinto beans, lentils, spinach, asparagus, and avocado, among others).

When should I take B12 morning or night?

You may need to take vitamin B-12 separately from the above drugs and supplements — say, one in the morning and one at night — so you can get the full dose of vitamin B-12. Don’t take vitamin B-12 supplements if you have sensitivities or allergies to vitamin B-12, cobalt, and any other ingredients.

What is the fastest way to increase B12?

To increase the amount of vitamin B12 in your diet, eat more of foods that contain it, such as:

  1. Beef, liver, and chicken.
  2. Fish and shellfish such as trout, salmon, tuna fish, and clams.
  3. Fortified breakfast cereal.
  4. Low-fat milk, yogurt, and cheese.
  5. Eggs.

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