Quick Answer: Are B12 Injections Safe?

Why do I need b12 injections?

Vitamin B12 Shots Are Very Effective An untreated vitamin B12 deficiency can lead to neurological problems or pernicious anemia, which occurs when your body doesn’t have enough B12 to produce the amount of red blood cells it needs ( 16 ).

Vitamin B12 shots are the most common way to prevent or treat a deficiency..

What happens when your vitamin b12 is low?

Not having enough B12 can lead to anemia, which means your body does not have enough red blood cells to do the job. This can make you feel weak and tired. Vitamin B12 deficiency can cause damage to your nerves and can affect memory and thinking.

Can you get b12 injections over the counter?

Cyanocobalamin is a prescription and over-the-counter (OTC) man-made form of vitamin B12 used to prevent and treat low blood levels of vitamin B12. Most people get enough vitamin B12 from their diet.

Who needs b12 injections?

Who needs B-12 shots?People with signs and symptoms of B-12 deficiency. Anyone who is displaying any of the signs and symptoms of a B-12 deficiency or pernicious anemia should consult their doctor immediately. … B-12 deficiency risk factors. … People with gastrointestinal issues. … Older adults. … Vegetarians and vegans.

Does b12 injections cause weight gain?

Some people are concerned that may gain weigh after starting B12 injection. You may gain a few pounds initially because of increased appetite. This is usually short lived and uncommon in our clinical practice. Following an appropriate diet with exercise will help prevent weight gain from happening.

How do you know if your b12 is low?

Symptoms of Vitamin B12 DeficiencyWeakness, tiredness, or lightheadedness.Heart palpitations and shortness of breath.Pale skin.A smooth tongue.Constipation, diarrhea, loss of appetite, or gas.Nerve problems like numbness or tingling, muscle weakness, and problems walking.Vision loss.More items…•

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.

Is there an alternative to b12 injections?

Oral vitamin B12 replacement at 1000 μg daily is an adequate alternative to IM B12 injections. Close monitoring with clinical review and repeat vitamin B12 levels are required on a monthly basis to review symptoms and ensure normalization of B12 deficiency.

What is the best time to take vitamin b12?

Water-soluble vitamins absorb best on an empty stomach. That means taking them first thing in the morning, 30 minutes prior to eating, or two hours after a meal. Water-soluble vitamins dissolve in water so your body can use them. Vitamin C, all B vitamins, and folate (folic acid) are water soluble.

Where do I inject my b12 shot?

This medicine is injected into a muscle or deeply under the skin. It is usually given by a health care professional in a clinic or doctor’s office.

Are b12 injections good for you?

Proponents of vitamin B-12 injections say the shots give you more energy and boost your metabolism, helping you shed unwanted pounds. But unless you have a vitamin B-12 deficiency, vitamin B-12 injections aren’t likely to give you an energy boost.

What are the side effects of b12 injections?

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. This medication may cause low potassium levels in the blood (hypokalemia).

Which is better b12 pills or injections?

Which is better—the B12 pill or the shot? A. Low B12 can cause anemia and fatigue. For many people with low B12 levels, a daily supplement in the form of a pill is as effective as taking a monthly muscle injection.

What is the best b12 injection?

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.

How long does a b12 shot last?

Once B12 reserves reach normal levels, injections of vitamin B12 will be needed every one to three months to prevent symptoms from returning.