b12 injection in leg Vitamin Injections: What You Need To Know B12 Injections for Energy: Benefits

Patients with a history of allergy to vitamin B or cobalt should not receive this injection

[29] Why do some patients still feel fatigued after injections

Allen, L

In more rare yet severe cases, you may experience: Itching or a feeling of swelling all over the body Muscle cramps and weakness Upset stomach and urinary problems Swelling in the ankles or feet Unusual tiredness Irregular heartbeat or trouble breathing If these side effects occur, consult your healthcare provider before continuing B12/MIC

Also tell them if you smoke, drink alcohol, or use illegal drugs

Dosage and Administration: Inject subcutaneously or intramuscularly