b12 injection dosage for postherpetic neuralgia Vitamin Monthly Injection: Typical Dose & Schedule Vitamin B12: A Review of

In these circumstances, an injection may still occasionally have a role, but it should not be presented as a substitute for a treatment that more directly addresses the structural problem

Some people notice improvements within a few weeks, while others may require longer depending on the cause and severity of their deficiency

When used in therapeutic doses, no side effects are observed, but from the nervous system and senses may be depression or agitation, disorientation, vomiting, sweating, visual disturbances, tremor, convulsions, respiratory depression, apnea

Alba M, Salvatori R

[PubMed: 19752219] 106

This method provides immediate bioavailability and higher blood levels than oral supplements, supporting energy production, nervous system function, and overall cellular health