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An intramuscular injection bypasses the gut entirely and delivers the full dose directly into the bloodstream within hours

These tests help identify the location and stage (stage 0 to stage 4, in order of severity) of cancer, which is important for designing the treatment plan

It is rarely used in primary care

Most of the vitamin C circulating in the bloodstream has a half-life of about 23 hours, and a large portion is filtered out through the kidneys within 24 hours, especially if your levels were already normal

A B12 shot functions by delivering high-dose cobalamin directly into the muscle, bypassing the digestive barriers that often block absorption

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