berberine and l carnitine together side effects You Should Know About Berberine is a potential alternative

Dose calculations at 10,000 mcg/mL: 1mg dose = 0.1mL = 10 units on U-100 syringe 2mg dose = 0.2mL = 20 units 4mg dose = 0.4mL = 40 units 6mg dose = 0.6mL = 60 units 8mg dose = 0.8mL = 80 units 12mg dose = 1.2mL = 120 units (requires two draws or larger syringe) This concentration works well for lower and mid-range doses

Results are for the detection of SARS CoV-2 antibodies

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Vitamin B12 Injections: Fast and Effective Vitamin B12 injections are administered directly into the muscle, bypassing the digestive system

Its not yet FDA-approved but widely administered by trained practitioners