Vitamin B12 is needed for healthy nerves and red blood cells. Supplements treat and prevent deficiency, which can cause tiredness and nerve symptoms.

What Vitamin B12 Is Used For

Vitamin B12 deficiency
Tiredness and nerve symptoms linked to low B12
Support for people on diets low in B12

Common Side Effects

Generally very well tolerated
Occasional mild stomach upset

Precautions

Vitamin B12 is very safe. If a deficiency is found, your doctor will want to know the cause, as some people need injections rather than tablets. Tell your doctor about any tingling, numbness or persistent tiredness so the right form and dose can be chosen.

This page is general information only. It is not a substitute for advice from your doctor or pharmacist, and it does not include dosage. Always follow the directions given to you and read the leaflet inside the pack.