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furosemide) can increase urinary excretion of thiamine and thereby lower B levels over time
For those with confirmed deficiency, B12 injections (hydroxocobalamin or methylcobalamin) deliver the vitamin directly into your bloodstream, ensuring full absorption
For example, a study conducted by Hsieh et al
What matters is what is bundled around it: who is supervising your protocol, where the medication came from, whether anyone is following up after the cycle
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