Vitamin B12

B12 is a water-soluble vitamin that has the potential to boost energy levels, reduce fatigue, and speed up metabolism, especially in those who are B12 deficient. Studies suggest that B12 also plays a role in fat metabolism. Low B12 levels may be linked to obesity.

Can I Buy B12 from Invigor Medical?

Patients can purchase B12 with an included prescription consultation with a doctor.

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Clinical Formula

C₆₃H₉₂CoN₁₃O₁₄P

FDA Designation

Approved

Other Names

methylcobalamin, cyanocobalamin

Can I Buy Vitamin B12?

Patients can buy Vitamin B12 with an included prescription consultation. Consult with the doctor via an online Telehealth visit. The medication is then sent directly from the pharmacy to the patient after approval.

Do We Offer Vitamin B12 as part of a treatment plan?

Yes

	Increased Energy	Improved energy production
	Assist with Weight Loss	Increased metabolic rate

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How Does Vitamin B12 Work?

B12 can help you lose weight and keep it off

Obesity, insulin resistance, dyslipidemia, and cardiovascular disease have all been linked to low B12 levels, according to researchers. B12 is involved in the regulation of DNA coding for proteins (epigenetics) as well as many metabolic processes in the cell. There is mounting evidence that B12-DNA interactions regulate lipid metabolism and play a role in fat deposition.

Crucial Vitamin for optimal function

B12 is an essential vitamin because it is obtained entirely through diet. B12 is found in animal products and fortified foods in the diet, but it can also be taken as a supplement. B12 is important in the formation of red blood cells and in regulating gene activity. It is also used to produce myelin, the fatty insulator that surrounds nerve cells that speeds up nerve signaling throughout the body.

Benefits of Vitamin B12

Vitamin B12 supplementation reverses the symptoms of B12 deficiency, which may lead to:

Improved memory
Improved mood
More energy
Decrease in weakness and fatigue
Improve the health of skin, hair, and nails
Reduce homocysteine levels
Improved sleep
May improve ringing in the ears

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Drug Details

Indications

What is Vitamin B12 used for?

Anyone with Vitamin B12 deficiency, including those:
Using antacids long-term
Having pernicious anemia
Having inflammatory bowel disease
Taking high doses of folic acid
Having lower stomach acid levels due to aging
Taking metformin for more than four months
Being vegan or vegetarian
Using alcohol excessively

Contraindications

When should you avoid Vitamin B12?

Vitamin B12 injections should not be used if you are allergic to cyanocobalamin or cobalt or if you have an inherited form of vision loss called Leber's disease. Cyanocobalamin can lead to optic nerve damage, which causes blindness in people with Leber's disease. Tell your doctor if you have:
Eye problems or Leber's disease
Kidney or liver disease
Iron or folic acid deficiency
Any type of infection
or are receiving any medication or treatment that affects bone marrow
People with the blood disorder polycythemia vera may have very serious side effects from B12 (cyanocobalamin) injections, including chest pain, shortness of breath, weakness on one side, sudden vision loss, or slurred speech.
Colchicine and heavy alcohol intake may interact with Vitamin B 12 injections.

Vitamin B12 Side Effects

What are the side effects of Vitamin B12?

Side effects due to an allergic reaction to B12 include hives, itching, swelling of your face, lips, tongue, or throat, or difficulty breathing. Get emergency help. Additional side effects from B12 injections may include:

Common Vitamin B12 Side Effects

abdominal or stomach pain
bleeding from the gums or nose
blue lips or fingernails, chest pain, cough, coughing up pink, frothy sputum
decreased urine output
difficulty breathing
difficulty swallowing
dilated neck veins
dizziness
fatigue
eye pain
fast heartbeat
Headache
increased sweating
Irregular breathing or heartbeat
puffiness or swelling of the face, fingers, feet, or lower legs
tightness in the chest
weight gain
Nausea, vomiting, diarrhea, loss of appetite, or rashes may also occur.
B12 injections can cause low potassium levels. Symptoms of low potassium include muscle cramps, weakness, and irregular heartbeat.

Rare Vitamin B12 Side Effects

Vitamin B12 Dosage Information

Vitamin B12 Dosage & Frequency

Typical Vitamin B12 Dosage & Frequency

1 ml
Daily

References

https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7400011/
https://www.cfp.ca/content/cfp/54/4/536.full.pdf

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