how long does the b12 injection take to work It for Vitamin Work? Simple Guide How Long Does Vitamin B12

Always talk to a healthcare provider before starting supplements

For many patients, this means an injection once a month, but some individuals may require injections every three months

You can also speak with a doctor or pharmacist if youre not sure

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A local injection-site reaction Intramuscular injections can leave the area sore, red, warm or slightly swollen for a day or two

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