For individuals receiving B12 injections for severe deficiency, there have been isolated reports of hypokalaemia (low potassium) during initial treatment, as rapid cell production consumes potassium
The dull throbbing and soreness, side effects of prescribed intramuscular (IM) injections can last forever, even if you self-inject vitamin B12 in the comfort of your own home
Delivery format considerations AHK-Cu is water soluble
Vitamin B-Complex includes a group of essential B vitamins (such as B1, B6, and B12) that support energy, brain function, and metabolism
Injectable B12 delivers the vitamin directly into the bloodstream, allowing for immediate absorption
Last reviewed: April 2026 Next scheduled review: October 2026 (FY2027 update) Ready to turn this knowledge into a credential