b12 injection drug interactions Pernicious Anemia - Diagnosis and Induced Deficiency What Are B12 Injections? And

How Fast Does a B12 Shot Work Compared to Oral Supplements Because B12 shots are administered intramuscularly and absorbed directly into the bloodstream, the nutrients bypass the slow digestive process

In rare cases, it's a burning sensation or a kind of pain

For example: Fatigue, unexplained weight loss, or abdominal pain may indicate liver disease or cancer Easy bruising, night sweats, or feeling full quickly (early satiety) may suggest a myeloproliferative disorder Swelling in the legs, reduced urine output, or persistent nausea may point to kidney disease In cases of very high B12 from injections (not oral supplements), some people have reported headache, nausea, diarrhea, facial flushing, or skin rash

Curious about the benefits of B12 shots and whether they can give you a lift

Yes, though it is rare

Paresthesias The medical term paresthesias refers to pins and needles or a burning sensation that typically occurs in the hands and feet