should i take folic acid with b12 injections (Vitamin B9) Injection Do I Need Lab Testing

However, vitamin C injections are typically only used when vitamin C levels need to be increased quickly or when oral supplements cant be taken due to poor absorption or other reasons

Malabsorption of protein-bound cobalamin but not unbound cobalamin during cimetidine administration

Standard 1,000-5,000 mcg IV B12 Dosing Guidelines The amount of IV vitamin B12 can vary a lot

Once chosen, the injection is delivered intramuscularly, usually in the upper arm or hip area

Phenytoin is a potent inducer of CYP 2C9, 2C19, and 3A4, resulting in innumerable drug-drug interactions.(34300194) interactions between phenytoin and valproate Effect on phenytoin: Valproate inhibits CYP2C9, resulting in the accumulation of phenytoin