When to seek medical help See a doctor promptly if you have spreading redness or warmth around the site, discharge or a fever, numbness or weakness that does not settle, or any swelling of the face, lips or throat or difficulty breathing, which can signal a rare allergic reaction and is a medical emergency
There is no downtime or preparation needed before vitamin injections
Once injected, B12 enters the bloodstream directly without requiring stomach acid, intrinsic factor (a protein necessary for B12 absorption), or healthy intestinal function
per each mL: Thiamine HCl 100 mg, Dexpanthenol 2 mg, Riboflavin 5' -Phosphate 2 mg, Pyridoxine HCl 2 mg, Niacinamide 100 mg Vitamin B-Complex 100 Injection is a sterile solution containing essential B vitamins for intramuscular or slow intravenous administration