(4) Smith RL, Soeters MR, Wst RCI, Houtkooper RH
Rarely reported symptoms may include mild skin reactions, gastrointestinal disturbance, or headache, typically following high-dose intramuscular injections
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These effects can include: abdominal pain chest pain cough dizziness eye pain irregular heartbeat ringing in the ears weight gain While some of these effects are merely uncomfortable, others are cause for concern
For Vitamin B12 Deficiency Once diagnosed with a vitamin B12 deficiency, your physician will likely start an aggressive injection regimen intended to help boost your level quickly
If switching the route of administration and dosage don't help, you may also have like a substrate issue