Blue Cross MN restricts J8499 further, limiting its use to after-hours emergency visits, house calls, or rural settings where standard dispensing is not practical
Another critical function of vitamin B12 is giving the digestive system energy to digest food and metabolism with carbohydrates, fats, and proteins

Respiratory system Upper airway Hoarseness/impaired ability to speak Stridor Angioedema of the face, tongue, larynx, uvula, and epiglottis Dyspnea Coughing Feeling of suffocation Wheezing Lower airway Wheezing/rhonchi Diminished/absent breath sounds Integumentary (skin) system Urticaria (hives) Pruritis (itching) Erythema (patching reddening of the skin) Angioedema Pale/Cyanosis Diaphoresis Nervous system Anxiety/restlessness (hypoxia) Possible seizures Headache Dizziness Altered LOC disorientation Syncope Cardiovascular system Tachycardia Hypotension Chest pain Dysrhythmias/irregular heartbeat Decreased cardiac output Decreased coronary blood flow Excessive vasodilation Gastrointestinal system Severe abdominal cramping Diarrhea Vomiting Now, as horrible as this all appears, many anaphylactic reactions occur acutely, thus prompting an immediate call into 9-1-1
Individual responses vary