After a single hydroxocobalamin injection, therapeutic levels can be maintained for approximately 8 to 12 weeks in most patients, which aligns with the standard maintenance schedule of injections every 2-3 months recommended in the British National Formulary (BNF)
That's easy when using thighs

B12 has many functions in our body, so unfortunately a deficiency will give rise to a wide variety of symptoms, like brain fog, memory problems, cognitive impairment, insomnia, headaches, especially migraine, behavioural changes, learning problems, nominal aphasia, mood swings, irritability, depression, anxiety, hallucinations, delusions, psychosis, peripheral paraesthesia (pins and needles), numbness, neuropathic pains, poor balance, reduced vibration sense or proprioception (joint position sense), tinnitus, ataxia, taste impairment, sometimes myelopathy, fatigue, anaemia (either with larger red blood cells, or with normal size of the red blood cells when there is also iron deficiency), other reduction in blood cells, abdominal complaints, malabsorption, failure to thrive, weight loss, diarrhoea, hyperpigmentation, glossitis, (aphthous) stomatitis, infertility, urinary tract infections, joint and muscle pain, muscle weakness, spasticity, seizures, cardiomyopathy, urinary and/or faecal incontinence, postural hypotension/dizziness, erectile dysfunction, to name a few

In biochemical and cell-based laboratory studies, BPC-157 has been investigated for its interaction with several signalling pathways, including those associated with nitric-oxide-related processes, growth-factor signalling cascades and regulators of cytoskeletal dynamics
This multi-use capability is what makes it the preferred reconstitution medium in research settings where multiple peptide vials may need to be prepared over the course of several weeks