let a refrigerated vial sit at room temperature for 510 minutes

Manufactured for: Revised: November 2025 PACKAGE LABEL.PRINCIPAL DISPLAY PANEL Vial Label - 1 mL: NDC 87188-111-01 Rx Only Cyanocobalamin Injection, USP 1,000 mcg/mL For Intramuscular or Subcutaneous Use Only 1 mL Multiple-Dose Vial Carton Label - 1 mL: NDC 87188-111-90 Rx Only Cyanocobalamin Injection, USP 1,000 mcg/mL For Intramuscular or Subcutaneous Use Only 25 X 1 mL Multiple-Dose Vials Vial Label - 10 mL: NDC 87188-112-01 Rx Only Cyanocobalamin Injection, USP 10,000 mcg/10 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous Use Only 10 mL Multiple-Dose Vial Carton Label - 10 mL: NDC 87188-112-01 Rx Only Cyanocobalamin Injection, USP 10,000 mcg/10 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous Use Only 1 x 10 mL Multiple-Dose Vial Vial Label - 30 mL: NDC 87188-113-01 Rx Only Cyanocobalamin Injection, USP 30,000 mcg/30 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous Use Only 30 mL Multiple-Dose Vial Carton Label - 30 mL: NDC 87188-113-01 Rx Only Cyanocobalamin Injection, USP 30,000 mcg/30 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous Use Only 1 x 30 mL Multiple-Dose Vial More about cyanocobalamin Check interactions Compare alternatives Pricing & coupons Reviews (31) Drug images Side effects Dosage information During pregnancy Drug class: vitamins

B12 injections are very safe, even at higher doses, when given by a trained provider
For these reasons, we prefer injecting B12 into fat
Table of Contents Can You Overdose on Vitamin B12
Once reconstituted, store the vial under refrigeration at 4 C (39 F)