In rare situations, B12 shots itching rash anaphylaxis, a life threatening condition that can cause a fast heartbeat and difficulty breathing Other side effects that can occur include: shortness of breath, fast weight gain, and swelling congestive heart failure, the inability of the heart to adequately pump blood pulmonary edema, the buildup of fluid in the lungs peripheral vascular thrombosis, the obstruction of a vein with a blood clot hypokalemia, low potassium levels that can cause irregular heartbeats and muscle weakness fever tingling, numbness, and joint pain swollen tongue polycythemia, an increase in the red blood cell mass Additionally, B12 B12 shots are not necessary for weight loss
Other populations at risk include people who had gastrointestinal surgery (including weight loss surgery) and diseases that affect the gut, such as Crohn's disease or celiac disease
Key Takeaways The standard initial dose for severe deficiency is 1,000 mcg intramuscularly daily or every other day
It tackles severe deficiency symptoms
S., Vogensen, F
Possible Side Effects 5-Amino-1MQ has been explored in laboratory and experimental research settings, and observations in some research contexts have included: Injection-site irritation or discomfort Temporary redness or swelling Headaches Nausea Fatigue or temporary energy-related variability Restlessness or stimulation-related observations Appetite-related changes Gastrointestinal discomfort Responses and tolerability observations may vary depending on: Experimental conditions Dosage ranges Protocol duration Administration frequency Concurrent compounds Individual sensitivity Higher-frequency or higher-range experimental protocols may increase the likelihood of tolerability-related observations in some research models
