b12 injections vs pills Vitamin Injections: Good or Bad? Oral vitamin B12 versus intramuscular

The timeline for effectiveness depends on the individual, with benefits ranging from immediate to long-term improvements

Loss of vision

A 2025 meta-analysis of 16 studies involving 6,098 participants found no statistically significant difference between intramuscular, oral, and sublingual B12 supplementation routes (p=0.270)

Your GP can perform a thorough assessment, review your complete medication list, and arrange appropriate investigations if needed

In rare cases, more significant concerns may occur, which is why consultation and proper guidance are important

Frequency and Dosage : B12 pills are typically taken daily, whereas B12 shot can be administered less frequently