FDA pharmacologic class
Copper Absorption Inhibitor
2 medicines are in FDA's class of copper absorption inhibitors: zinc sulfate and zinc chloride; 1 combination product also contains one. 2 of the 3 are listed from generic labelers (FDA NDC Directory, October 8, 2026).
Which medicines are copper absorption inhibitor?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Zinc sulfate | none listed | 8 labelers | n/a | No | No current entry | 2 |
| Zinc chloride | none listed | 2 labelers | n/a | No | No current entry | 1 |
| Cupric sulfate, manganese sulfate, selenious acid and zinc sulfate | Multrys, Tralement | none listed | n/a | No | No current entry | 0 |
Source: FDA Established Pharmacologic Class (NDC Directory, openFDA); CMS NADAC of October 7, 2026; FDA shortages and recalls (FDA files October 8, 2026)