Do vitamin B12 shots have side effects?

Pain/redness at the injection site, mild diarrhea, itching, or a feeling of swelling all over the body may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

How long does it take for B12 injection to start working?

B12 injections work quickly; they are the most effective way for your body to absorb Vitamin B12. Within 48 to 72 hours, your body will begin to make new red blood cells. For mild deficiencies, you may need two to three injections over several weeks to notice peak impact.

How much B12 injection is safe?

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.

Are there any side effects to taking vitamin B 12?

Oral vitamin B-12 is safe to take at recommended doses for healthy people. Injectable vitamin B-12, which is used to treat significant deficiencies, can cause the following side effects: mild diarrhea. itching. skin rash. headache. dizziness. nausea.

Is it safe to take vitamin B12 injections?

However, it may take a few days or weeks before your symptoms start to improve and you feel better. At first, you may need to have the injection a few times a week to boost your levels of vitamin B12. Some common side effects are feeling or being sick and diarrhoea. It’s safe to take for a long time.

What are the side effects of Big Shot B-12?

Incidence Not Known. Abdominal or stomach pain. bleeding from the gums or nose. blue lips and fingernails. chest pain. cough. coughing that sometimes produces a pink frothy sputum.

How much vitamin B 12 should I take?

According to the National Institutes of Health, the recommended dietary amounts (RDAs) are as follows: If you’re over the age of 50, you should try to get your RDA by eating foods with B-12 or by taking a supplement containing 25 to 100 mcg of B-12. Foods with vitamin B-12 include: How are vitamin B-12 side effects treated?

What are the side effects of too much vitamin B12?

That being said, too much vitamin B12 side effects can include diarrhea, itching, blood clots, numbness in the extremities, and severe allergic reactions. Excessive vitamin B12 may also increase the risk of prostate cancer. Some medications that may interact with vitamin B12 include anticonvulsants,…

Is it safe to take vitamin B12 injection?

Vitamin B12 is LIKELY SAFE for most people when taken by mouth, applied to the skin, taken through the nose, administered as a shot, or injected into the vein (by IV). Vitamin B12 is considered safe, even in large doses.

What are the symptoms of too much vitamin B12?

Other side effects of taking too much vitamin B12 include headache, dizziness, diarrhea, indigestion, nausea, vomiting, back pain, joint pain, swelling, anxiety, nervousness and lack of coordination. There is also risk of contamination with the supplement of this vitamin.

What are the benefits of a B12 injection?

Benefits of Vitamin B12 Injections. The purpose of the Vitamin B12 injections is to improve energy levels, boost metabolism and help burn fat, some of the key benefits are: – B12 Boosts ENERGY and Overall Metabolic Rate. – Enhances MOOD.