The incidence of side effects due to copper increases with increasing concentrations. Side effects may include stomach ache, cramps, nausea, and vomiting. Copper poisoning is rare but it may cause severe side effects including bloody diarrhea, low blood pressure, low numbers of blood cells, liver damage, kidney failure, heart problems, fever, and jaundice.
Copper can interact with some medications. It decreases the absorption of penicillamine. Copper absorption may be reduced when taken with other supplements such as iron, vitamin C, or zinc. Consult your health care provider if you have any questions.
You should avoid copper if you are allergic to copper. Consult your health care provider if you are pregnant or breast-feeding before taking copper. Copper supplementation may also worsen certain conditions such as Wilson disease.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.