can you take too much vitamin b12 injections How to Give at Home to Yourself · PA Relief Too Much Vitamin B12: Risks,

B-100 complex can interfere with other medicines including but not limited to: levodopa, medicines containing oestrogen, hydrazine, certain anti epileptic drugs, phenobaritone, phenytoin, immunosuppressants and some drugs used to treat infections such as isoniazid, pyrazinamide, cycloserne and penicillamine

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[73] Streptomyces griseus , a bacterium once thought to be a fungus, was the commercial source of vitamin B 12 for many years

Each category works through a different mechanism, carries a different level of clinical evidence, and comes with its own cost and safety considerations, so understanding the distinction matters before choosing one