Medications That May Deplete COPPER
Copper supports iron metabolism, nerve function, and connective tissue formation. See which medications carry a reported association, how strong the evidence is, and what to discuss with your pharmacist.
Copper supports iron metabolism, nerve function, and connective tissue formation.
Common food sources: Shellfish and organ meats; Nuts and seeds; Whole grains; Dark chocolate.
Copper questions usually arise alongside long-term zinc use or certain absorption conditions — ask your provider whether testing makes sense in your situation.
HelloPharmacist pharmacist-reviewed education. The medication records below are licensed clinical data, shown as published.
Deep dive: Copper — uses, safety & drug interactions
Medications associated with COPPER depletion
Each record is shown as published in our licensed clinical database. Open a medication for its full nutrient report.
Lamivudine, Zidovudine
Insignificant DepletionBrand names include Combivir
Decreased plasma copper levels are found in some people with HIV infection treated with zidovudine. However, preliminary clinical research suggests this is beneficial; patients with lower copper levels appear to have a slight survival advantage.
Copper helps the body build healthy tissue, supports nerve function, and plays a role in the immune system. Some early research found that people with HIV taking zidovudine had slightly lower copper levels in their blood, possibly because the drug affects how the body handles this mineral at a cellular level. Interestingly, those lower levels may not be a bad thing, since preliminary data even suggested a small survival benefit. Given that this is rated an insignificant depletion, most patients do not need to worry about copper or take a supplement, but feel free to bring it up with your pharmacist or doctor if you have questions.
References (2)
- Baum MK, Javier JJ, Mantero-Atienza E, et al. Zidovudine-associated adverse reactions in a longitudinal study of asymptomatic HIV-1-infected homosexual males. J Acquir Immune Defic Syndr 1991;4:1218-26.
- Lai H, Lai S, Shor-Posner G, et al. Plasma zinc, copper, copper:zinc ratio, and survival in a cohort of HIV-1-infected homosexual men. J Acquir Immune Defic Syndr Human Retrovirol 2001;27:56-62. DOI
Zidovudine
Insignificant DepletionBrand names include Retrovir, Retrovir Injection
Decreased plasma copper levels are found in some people with HIV infection treated with zidovudine. However, preliminary clinical research suggests this is beneficial; patients with lower copper levels appear to have a slight survival advantage.
Copper helps your body build red blood cells and keeps your immune system working. Some research has found that people taking zidovudine for HIV have slightly lower copper levels in the blood, possibly because the drug affects how the body handles this mineral at a cellular level. Here is the interesting part though: lower copper levels in this setting may actually be a good sign, with some early studies suggesting a small survival benefit. This is rated as an insignificant depletion, so for most people on zidovudine, there is no need to do anything, but feel free to bring it up with your pharmacist or doctor if you are curious.
References (2)
- Baum MK, Javier JJ, Mantero-Atienza E, et al. Zidovudine-associated adverse reactions in a longitudinal study of asymptomatic HIV-1-infected homosexual males. J Acquir Immune Defic Syndr 1991;4:1218-26.
- Lai H, Lai S, Shor-Posner G, et al. Plasma zinc, copper, copper:zinc ratio, and survival in a cohort of HIV-1-infected homosexual men. J Acquir Immune Defic Syndr Human Retrovirol 2001;27:56-62. DOI
Ethambutol
Insufficient EvidenceBrand names include Myambutol, Etibi
Ethambutol and its metabolite chelate copper, which may result in tissue depletion of copper. It's suggested that copper chelation in the retina might contribute to ethambutol-induced optic neuropathy. Chelation of copper ions in cytochrome-c oxidase may inhibit mitochondrial activity in optic nerve axons. Whether supplemental copper can prevent this side effect isn't known. Preliminary research suggests that copper supplements do not inhibit the antimicrobial action of ethambutol.
Copper helps your body make energy inside cells and keeps nerves working properly. Ethambutol and one of its breakdown products can bind to copper, a process called chelation, which may theoretically pull copper away from tissues, including the nerves in your eyes. Because the evidence here is still very preliminary, researchers do not yet know whether this matters clinically for most people taking the drug. If you have any questions or concerns while on ethambutol, your pharmacist or doctor is the right person to talk with.
References (3)
- Cole A, May PM, Williams DR. Metal binding by pharmaceuticals. Part 1. Copper(II) and zinc(II) interactions following ethambutol administration. Agents Actions 1981;11:296-305. PubMed
- Campbell IA, Elmes PC. Ethambutol and the eye: zinc and copper (letter). Lancet 1975;2:711. DOI
- Kozak SF, Inderlied CB, Hsu HY, et al. The role of copper on ethambutol's antimicrobial action and implications for ethambutol-induced optic neuropathy. Diag Microbiol Infect Dis 1998;30:83-7. PubMed
Penicillamine
Insufficient EvidenceBrand names include Cuprimine, Depen Titratable
Penicillamine chelates copper in the gastrointestinal tract and decreases absorption. To avoid this interaction, copper supplements should be separated from penicillamine by at least 2 hours.
Copper helps your body build healthy blood vessels, supports your immune system, and keeps your nerves working properly. Penicillamine works by latching onto copper molecules in your gut, which can pull the mineral out before your body has a chance to absorb it. That said, the evidence here is rated as insufficient, meaning researchers have not yet established whether this actually causes a meaningful problem for most people taking the drug. If you have been on penicillamine for a long time, it is worth mentioning this to your pharmacist or doctor so they can decide whether any monitoring makes sense for you.
References (4)
- Campbell IA, Elmes PC. Ethambutol and the eye: zinc and copper (letter). Lancet 1975;2:711. DOI
- Segal S, Kaminski S. Drug-nutrient interactions. American Druggist 1996 Jul;42-8.
- Kozak SF, Inderlied CB, Hsu HY, et al. The role of copper on ethambutol's antimicrobial action and implications for ethambutol-induced optic neuropathy. Diag Microbiol Infect Dis 1998;30:83-7. PubMed
- Cantilena LR, Klaassen CD. The effect of chelating agents on the excretion of endogenous metals. Toxicol Appl Pharmacol 1982;63:344-50.
This tool is educational and is not a substitute for professional medical advice. An association is not a diagnosis and does not mean a deficiency will occur. Always talk to your pharmacist or healthcare provider before starting, stopping, or changing any medication or supplement.
Disclaimer: This checker finds which nutrients might be depleted by prescription or over-the-counter medications. Each nutrient depletion issue is rated based on clinical significance. Use your own professional judgment prior to making clinical decisions.© 2026 Therapeutic Research Center Licensed records refresh weekly · last updated July 3, 2026.
What drug-induced nutrient depletion means
Some medications can, over time, lower the levels of certain vitamins, minerals, or other nutrients — through reduced absorption, increased loss, or changes in how the body uses them.
Association is not deficiency
An entry here means a depletion has been reported or studied — not that it happens to everyone, or that you are deficient. Dose, duration, diet, and your own health all matter.
Evidence varies by pair
Some drug–nutrient links (like metformin and vitamin B12) are well studied; others rest on limited or preliminary research. Each entry shows the evidence rating from our licensed clinical database.
When to ask about labs
If you take an associated medication long-term, ask your healthcare provider whether monitoring is appropriate for you. Not everyone needs testing — your provider can weigh your dose, duration, and symptoms.
Don't self-supplement blindly
Supplements are not risk-free: some can interact with medications, and some (like potassium or magnesium) can be risky with kidney disease. Talk to your pharmacist before adding anything.
Never stop a medication over this
These medications are prescribed for good reasons, and the benefit usually far outweighs a manageable nutrient consideration. Any change belongs in a conversation with your prescriber.
Food first, usually
For many nutrients, a varied diet covers the gap. Each entry lists common food sources; a supplement is a decision to make with your pharmacist or provider, not a default.
COPPER & medications: FAQs
Which medications can lower COPPER?
I take one of these medications — am I deficient in COPPER?
Should I start a COPPER supplement?
Where does this information come from?
Other commonly implicated nutrients
Wondering about your COPPER levels?
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Sources & How We Checked
Medication associations with COPPER are evidence-graded and sourced from the Natural Medicines database, and are displayed as published with their citations.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference for drug-induced nutrient depletions, supplements, and interactions — the basis for this page.
- MedlinePlus, U.S. National Library of Medicine — NIH consumer drug information, used for medication overviews across the site.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.