In the UK, intramuscular (IM) administration is standard practice for hydroxocobalamin, though subcutaneous (SC) may be used if specifically advised by your healthcare provider and following appropriate training
Chuanjie W, Haiyue Z, Haiqing S, Yuping W, Xunming J
In fact, starting at age 50, people lose about 1% of their muscle mass and strength with each passing year, which gets progressively worse
Two downstream consequences are mechanistically central: nicotinamide is preserved for re-entry into the NAD+ salvage pathway (raising intracellular NAD+ availability), and SAM is preserved for other methylation reactions
However, some doctors prescribe vitamin B complex injections or other supplements containing vitamin B to improve the overall health of the patients
Her doctor prescribed 1000mcg of B12 daily without really considering her kidney function