As with other forms of copper supplementation, the use of parenteral injections can sometimes give rise to toxic reactions as well as allergic type responses with respiratory distress. It is recommended that any animal showing a marked systemic reaction should be treated by a veterinary surgeon. A small nodule may occur at the injection site in cattle but this will be transient and will disappear in less than one month. The likelihood of this happening can be reduced by use of proper injection technique. Avoid injection on wet days as this increases the likelihood of contamination. Do not administer intravenously. Do not overdose as there is no specific antidote. Do not inject into the rump muscles. Do not use concurrently with any other preparation.