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Vitamin B12 Injection

Vitamin B12 is a nutrient that helps to keep your nerves and blood cells healthy. 


Book your appointment at a time and place that's convenient for you. 


Our bodies don’t make Vitamin B12, it is obtained from foods such as meat, fish, milk and eggs. You may have a deficiency if you are vegan, don’t eat enough B12 rich food, or if you have other health conditions which mean you are unable to absorb it properly, such as pernicious anaemia.

What is Vitamin B12?


Vitamin B12 is needed to make new cells in the body such as red blood cells. A lack of vitamin B12 leads to anaemia, low energy, stomach problems (constipation, loss of appetite, weight loss), poor memory and nerve damage.


Most people get enough vitamin B12 from their diet. It is is found in meat, fish, eggs, and milk. It is generally not found in plant foods but many foods have added vitamin B12 such as breakfast cereals. A normal balanced diet usually contains enough vitamin B12. 


The most common cause of vitamin B12 deficiency is pernicious anaemia.  Some problems of the gut can also be a cause of vitamin B12 deficiency, but this is less uncommon, for example:

  • surgery to remove parts of the bowel (the stomach or the end of the small intestine) 

  • Crohn's disease 

  • atrophic gastritis (where the lining of the stomach is thinned).


A deficiency of vitamin B12 can also occur with poor nutrition. Long term strict vegetarian or vegan diets (no animal products) are associated with a higher risk of vitamin B12 deficiency. This is especially important during pregnancy and breastfeeding when more vitamin B12 is needed.


The level of vitamin B12 in the body can be measured by a blood test. If you have low levels of vitamin B12 your doctor may prescribe hydroxocobalamin, which is given as an injection.  


How is the B12 Injection given?


  • This is usually given as an intramuscular injection, every 2-3 months.

  • Alternatives to an intramuscular injection are: Oral Vitamin B12 at a dose of at least 1000mcg per day.

  • It is important to monitor your symptoms if you change to oral B12.


What can you expect in your appointment?


Step 1 - Book your Vitamin B12 injection

Find your nearest participating pharmacy.


Step 2 - Attend your consultation

To discuss your symptoms and to help us decide if the B12 injection is suitable to you.


Step 3 - Get your Vitamin B12 injection

Get your B12 injection from one of our qualified pharmacists.


Living Rewards members receive 10 Living Rewards points when they get their vitamin B12 injection.

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Unichem Campus Pharmacy

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Level 1, Student Commons, 9 Symonds Street, Auckland CBD, AUCKLAND 1010

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(09) 377 1991

Unichem Roskill Village Pharmacy

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1490 Dominion Road Extension, Mt Roskill, AUCKLAND 1041

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(09) 620 8599

Unichem Greenhithe Pharmacy

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Shop 2, 6-8 Greenhithe Road, Greenhithe, AUCKLAND 0632

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(09) 413 9324

Unichem Rosedale Pharmacy

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372 Rosedale Road, Rosedale, AUCKLAND 0632

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(09) 415 3065

Unichem Grey Lynn Pharmacy

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580 Great North Road, Grey Lynn, AUCKLAND 1021

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(09) 360 1159

Unichem Wynyard Pharmacy

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Datacom Building, 58 Gaunt Street, Auckland CBD, AUCKLAND 1010

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(09) 302 0367

Unichem Browns Bay Pharmacy

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66 Clyde Road, North Shore, AUCKLAND 0630

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(09) 478 7069

Unichem Albany Mega Centre Pharmacy

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11 Coliseum Drive, Albany, AUCKLAND 0632

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(09) 415 0655

Unichem Coxs Pharmacy

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Cnr Line Road & Mayfair Place, Glen Innes, AUCKLAND 1072

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(09) 528 5117

Unichem Ponsonby Pharmacy

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1/283 Ponsonby Road, Ponsonby, AUCKLAND 1011

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(09) 376 2460

Unichem Dennis Hanna Pharmacy

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1/575 Glenfield Road, Glenfield, AUCKLAND 0629

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(09) 444 8681

Unichem Apollo Pharmacy

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119 Apollo Drive, Albany, AUCKLAND 0632

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(09) 476 9016

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