b12 injection 1000 mcg ml CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 (1000 mcg/mL) 30 mL VIAL poor nutrition Cyanocobalamin (B12) Injection - Wells

Which method wins here really comes down to your personality: if you are disciplined and dislike needles, pills may suit you

Tonegawa, S

Forms of Vitamin B12 and Who They Suit B12 Form How Its Taken Best For Tablets/Capsules Swallowed with water Mild deficiency, general wellness, everyday convenience Sublingual tablets Dissolve under the tongue People who may not absorb well through the gut Nasal spray Sprayed into the nostril Those who dislike pills or injections Injections Given in clinic or at home (prescribed) Confirmed deficiency, absorption issues, and faster results Oral tablets and capsules are convenient, but they must pass through the digestive system, which can limit absorption in people with gut issues, low stomach acid, or certain surgeries

After symptoms abate, the recommended dose is 100 mcg monthly, for life

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