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Dizziness: Changes in nitric oxide levels lead to lightheadedness immediately after administration

Pilot interstitial cystitis 12 patients 2024 + PK 2 healthy subjects 2026

Besides, it stimulated expression of early growth response 1 (egr-1) gene responsible for cytokine and growth factor generation and early extracellular matrix (collagen) formation (but also its repressor nerve growth factor 1-A binding protein-2 (nab2)) (44)

The vial should remain sealed and sterile until it is ready to be used

So, injections are a more direct way to make sure your body gets the B12 it needs, while tablets might not work as efficiently because they have to go through your stomach and intestines first