A 280-pound person and a 160-pound person often use the same dose
B12 Injection Administration Methods Knowing how to give B12 injections is key
Side Effects & Safety Injection site stinging/burning very common, lasting 5-15 minutes (most frequently reported side effect) Mild flushing occasional, less intense than IV route IV-specific: flushing, warmth, chest tightness, nausea common and rate-dependent, managed by slowing infusion GI discomfort with oral precursors mild and infrequent at standard doses Insomnia occasional if taken late in the day (avoid evening dosing) No serious adverse events reported in published human trials for NR 1000 mg/day or NMN 250 mg/day mg to Units Conversion On a standard 100-unit insulin syringe, each "unit" equals 0.01 mL (so 100 units = 1 mL)
Strongest human evidence The METAOD006 (OPTIONS) Phase 2b trial randomized 502 adults with obesity (BMI 30-45 kg/m^2) to oral AOD-9604 (0.25, 0.5, or 1 mg/day) or placebo for 24 weeks alongside a supervised diet and exercise program
Most clinical studies have found that BPC 157s therapeutic effects are sustained with continued use