Injection protocols for TFCC target the ulnar wrist area, subcutaneously placed over the depression between the ulnar styloid and the fifth metacarpal base
Research by Heffernan et al
A 50 mg vial mixed with 3.0 mL of bacteriostatic water gives about 16.7 mg/mL, and the example subcutaneous range is 2.5 to 5 mg per day
First Injection Quick intramuscular injection in the upper arm, thigh, or gluteal area typically less than 10 minutes
While every patient is different, people who respond well to B12 injections often report feeling more refreshed, more focused, and more capable of following through on healthy habits
In many cases, switching from oral to intramuscular B12 circumvents absorption issues entirely, providing reliable therapeutic levels regardless of gastrointestinal factors or drug interactions