Galzin is a prescription medication containing zinc acetate, approved by the FDA for maintenance treatment of Wilson’s disease. It is specifically intended for patients who have already undergone initial treatment with a copper-removing (chelating) agent and need long-term therapy to keep copper levels under control.
How Wilson’s Disease Creates the Need for Galzin
Wilson’s disease is a genetic condition in which the body cannot properly eliminate copper. Instead of being excreted through bile the way it normally would, copper builds up in the liver, brain, and other organs, eventually causing serious damage. The standard approach is a two-phase treatment: first, a chelating agent strips out the excess copper that has already accumulated, then a maintenance drug like Galzin prevents copper from building back up. Galzin is not used for that initial phase. It takes over once copper levels have been brought down to a safer range.
How Galzin Blocks Copper Absorption
Galzin works in the gut, not in the bloodstream. When you take zinc acetate, the zinc prompts cells lining your intestines to produce a protein called metallothionein. This protein acts like a sponge for copper: it binds to copper from the food you eat and holds onto it inside the intestinal cells. Those cells naturally shed every few days and are eliminated in your stool, taking the trapped copper with them. The result is that less dietary copper ever reaches your bloodstream.
This mechanism also works on copper that your body secretes into the gut through saliva and gastric juices. By capturing copper from both dietary and internal sources, Galzin creates a mild negative copper balance over time, which is exactly what someone with Wilson’s disease needs to stay stable.
Dosage and How to Take It
Galzin comes in capsules containing either 25 mg or 50 mg of zinc. The recommended adult dose is 50 mg three times a day. For children aged 10 and older and for pregnant women, a lower dose of 25 mg three times a day is often effective, though the dose can be increased to 50 mg three times daily if monitoring shows copper control is slipping.
Timing matters significantly with this medication. You need to take Galzin on an empty stomach, at least one hour before eating or two to three hours after a meal. Food interferes with zinc absorption in the gut and reduces the drug’s ability to block copper. The dose should also be separated from other beverages besides water by at least one hour.
Side Effects and Safety Concerns
The most common complaint with Galzin is stomach irritation. Taking it on an empty stomach, which is required for it to work properly, can make this worse for some people. Most patients find the irritation manageable, but it can be a persistent nuisance.
A more serious concern is gastric ulcers, which have been reported with long-term use. Some of these cases led to complications including anemia and, in rare instances, ulcer perforation. In several reported cases, the ulcers did not resolve until zinc acetate was stopped entirely. Any signs of stomach pain, dark stools, or unexplained anemia during treatment warrant prompt medical attention.
Some patients also show temporary elevations in certain enzyme levels (alkaline phosphatase, amylase, and lipase) that suggest mild pancreatic stress. These elevations can persist for weeks to months but typically settle to high-normal levels within the first one to two years of therapy.
Monitoring During Treatment
Because Galzin’s job is to maintain a careful balance, regular monitoring is part of the treatment plan. Doctors typically track urine copper levels to make sure the drug is keeping copper excretion where it should be. If those numbers start creeping up, the dose may need adjusting. This is also how clinicians catch early signs that a patient is not absorbing enough zinc, possibly because of inconsistent timing with meals or missed doses.
Compliance is especially important with Galzin because the consequences of letting copper accumulate again are serious, including liver damage and neurological decline. The three-times-daily dosing schedule on an empty stomach can be inconvenient, but skipping doses or taking them with food undermines the drug’s effectiveness.
Availability and Manufacturer
Galzin was originally marketed by Teva Pharmaceuticals. At the end of 2024, Eton Pharmaceuticals acquired the product for $7 million and began commercializing it in the United States in early 2025 through a metabolic disease sales force. As a branded medication for a rare disease, Galzin has historically been expensive, though generic zinc acetate formulations may also be available depending on your pharmacy and insurance coverage.