The duration and effects of a Vitamin B12 shot can vary widely depending on individual needs, dosage, frequency of administration, the bodys storage capacity, lifestyle factors, and metabolism
This may result in sense loss, difficulty in proprioception, neuropathic pain, difficulty walking, poor balance, loss of sensation in the feet, muscle weakness, blurred vision (either due to retinopathy [27] or optic neuropathy [28] ), impaired urination, fertility problems, decreased sense of taste and smell, decreased level of consciousness, changes in reflexes, memory loss, mood swings, depression, irritability, cognitive impairment, confusion, anxiety, clumsiness, dementia, and, in more severe cases, psychosis
erythroctyes, haemoglobin or myoglobin), then the urine may be discoloured and described as raspberry, or cherry-red
For sustained benefits, a series of injections is typically recommended