Is sublingual B12 as effective as injection

Reconstitution solution/Bacteriostatic water Catalog Numbers: 786-2352 Reconstitution solution/Bacteriostatic water 2 x 10ml 786-2353 Reconstitution solution/Bacteriostatic water 3 x 10ml 786-2225 Reconstitution solution/Bacteriostatic water 5 x 10ml 786-2354 Reconstitution solution/Bacteriostatic water 2 x 30ml 786-2226 Reconstitution solution/Bacteriostatic water 3 x 30ml Reconstitution solution/Bacteriostatic water 52619 Catalog Description Size Price(USD) Qty Catalog 786-2352 786-2352 Description Reconstitution solution/Bacteriostatic water Reconstitution solution/Bacteriostatic water Size 2 x 10ml 2 x 10ml $17.00 $17.00 Catalog 786-2353 786-2353 Description Reconstitution solution/Bacteriostatic water Reconstitution solution/Bacteriostatic water Size 3 x 10ml 3 x 10ml $23.00 $23.00 Catalog 786-2225 786-2225 Description Reconstitution solution/Bacteriostatic water Reconstitution solution/Bacteriostatic water Size 5 x 10ml 5 x 10ml $35.00 $35.00 Catalog 786-2354 786-2354 Description Reconstitution solution/Bacteriostatic water Reconstitution solution/Bacteriostatic water Size 2 x 30ml 2 x 30ml $20.00 $20.00 Catalog 786-2226 786-2226 Description Reconstitution solution/Bacteriostatic water Reconstitution solution/Bacteriostatic water Size 3 x 30ml 3 x 30ml $25.00 $25.00 Reconstitution solution/Bacteriostatic water Reconstitution solution/Bacteriostatic water is a sterile water solution containing 0.9% benzyl alcohol

For perspective, the recommended daily intake for adult women ages 1950 is about 18 milligrams per day, and for adult men its 8 milligrams per day, Pete said
Prescription Vitamin B12 Injections: Tiaminal and Other Formulations Tiaminal and other Vitamin B12 injection formulas give doctors many choices for treating B12 deficiency
Weidenbacher PA, Sanyal M, Friedland N, Tang S, Arunachalam PS, Hu M, et al
NG239 Evidence review D: tests for identifying cause of vitamin B12 deficiency