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But for most purposes (like weekly maintenance injections), IM is the preferred route at home because its simpler (the vitamins absorb quickly from muscle into the bloodstream over a few hours)
Some lyophilized peptides dissolve almost immediately, while others require additional time
This often includes older adults, as stomach acid productionwhich is essential for B12 absorptiontends to decrease with age
Patients typically tolerate it very well, especially when paired with physician oversight, ongoing monitoring, and personalized dosing
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