is b12 injection over the counter Cyanocobalamin (B12) 1000 mcg/mL, Multiple Dose Vial 30 mL Compounded Methylcobalamin (Vitamin B12) Injection,

Distorted Results It is now known that the test results of numerous laboratories are distorted if the patient has a very high number of intrinsic factor (IF) antibodies in the blood

You may lack vitamin B12 if you dont get enough of this micronutrient in your diet or if you have a digestive system disorder that prevents proper B12 absorption

Possible mild effects : local injection site soreness, slight flushing Rare : nausea, dizziness, allergic reaction Contraindications : hypersensitivity to any component

Sounds really bizarre, hope it settles down soon and both you and your brother get a good night's sleep

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