does b12 injections cause constipation Vitamin Injection Dose: 7 Guidelines for Safe Treatment Who Needs Vitamin B12 Shots?
Description
Drug-induced deficiencies (e.g., isoniazid, oral contraceptives)

This Vitamin B-12 can be taken as a dietary supplement along with the foods to treat the deficiency

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Your doctor might also check your B12 levels with blood tests
