Systemic allergic reactions to the benzyl alcohol in bacteriostatic water are extremely rare, especially given the small amounts used, but as with any injection, if you were to develop symptoms like hives, difficulty breathing, or low blood pressure after an injection, seek medical care
See what is AHK-Cu used for and is AHK-Cu a DHT blocker for a fuller comparison
However, excessive force causes unnecessary tissue damage
DOSAGE AND ADMINISTRATION: Intramuscular injection HorseCattle:20 ~ 40ml
The most common sites for B12 injections are the deltoid (upper arm), vastus lateralis (outer thigh), ventrogluteal (hip), abdomen, and outer upper arm for subcutaneous injections