are b12 patches as effective as injections Vita Sciences B-12 Patch (4 count) #29102 are b12 patches as effective

Bioorganic & Medicinal Chemistry Letters

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Regular B12 injections at our practice can protect your visual health

For ongoing care: 1 mL (1000 mcg) given as an intramuscular shot once a month

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Neomycin, colchicine, para-aminosalicylic acid, or excessive alcohol intake longer than two weeks may cause malabsorption of vitamin B12. Chloramphenicol and other drugs having bone marrow suppressant properties may cause a lack of therapeutic response to vitamin B12