Såvel de kliniske erfaringer fra mere end 1000 patientår med zink (mere end 500 med Wilzin) som post- marketingsovervågning af Wilzin på mere end 1000 patientår viser at den mest almindelige bivirkning er gastrisk irritation.
Clinical experience of more than 1 000 patient-years with zinc (more than 500 with zinc acetate dihydrate) as well as post-marketing surveillance with zinc acetate dihydrate of more than 1 000 patient-years showed that the most common undesirable effect is gastric irritation.