Som med alle anti- kobber stoffer, kan en over- behandling medføre en risiko for kobbermangel, der især er skadeligt for børn og gravide kvinder, idet det er nødvendigt for vækst og mental udvikling.
Like with all anti-copper agents overtreatment carries the risk of copper deficiency, which is especially harmful for children and pregnant women since copper is required for proper growth and mental development.