other name for vitamin b12 injection Compounded Methylcobalamin (Vitamin B12) Injection,

Options for B12 treatment include injections, patches and pills

Absence of Common Growth Hormone Side Effects: Because AOD-9604 does not bind to growth hormone receptors or elevate IGF-1, it avoids edema and fluid retention, joint pain and stiffness, carpal tunnel syndrome, glucose elevation and insulin resistance, increased cancer risk concerns from IGF-1 elevation, organ growth or acromegaly features with long-term use, and thyroid function suppression

What about iron and Vitamin D

Step 3: SAH in turn is converted to homocysteine by the enzyme S-adenosylhomocysteine hydrogenase (SAHH), which also produces adenosine

Pharmacokinetics Absorption A three way crossover study in 25 fasting healthy subjects was conducted to compare the bioavailability of the B 12 nasal spray to the B 12 nasal gel and to evaluate the relative bioavailability of the nasal formulations as compared to the intramuscular injection

I tried increasing the frequency of SI from 2 weekly to 1 weekly and the flushing got much worse - so I think this is the likely culprit