Several factors influence the choice of needle and syringe: Type of injection : Intramuscular (IM) or subcutaneous (SC) Gauge of the needle : Diameter of the needle Length of the needle : Determines the depth of injection Volume of the syringe : Determines the amount of B12 to be injected 3
Vitamin B12 also may be involved in maintaining sulfhydryl (SH) groups in the reduced form required by many SH-activated enzyme systems
In general, serious side effects from B12 injections are rare but in some cases, people may experience a few mild ones including pain, redness, or bruising at the site of injection
[2] Pharmacokinetic studies demonstrate rapid systemic distribution with peak plasma levels occurring within 30-60 minutes of intramuscular injection, followed by extensive hepatic storage and enterohepatic recycling
Your doctor will give you the right dosage of vitamin B12 supplement, especially if you will inject it
The effects of our injections vary between individuals