b12 injection running out Vitamin Injections: What You Need To Know Are you feeling run down?

PMID: 28879195 Amrein K, Scherkl M, Hoffmann M, Neuwersch-Sommeregger S, Kstenberger M, Tmava Berisha A et al

Reported effects are generally mild and may include injection-site reactions (redness, soreness, swelling), nausea, stomach upset, headache, or fatigue

Dosage, Concentration, Route of Administration Dosage : Seek advice from a licensed physician, medical director, or other healthcare provider Concentration : (Lidocaine HCl 1%) 10mg/ml, (Also available: (Lidocaine HCl 2%) 20mg/ml) Route of Administration : IM/IV/Sub-Q Resources: Precautions/Side Effects It is crucial to discuss any allergies you might have to lidocaine or other anesthetics, such as bupivacaine or prilocaine, with your doctor

That's well below toxic thresholds, but chronic administration over 6+ months hasn't been studied in controlled human trials