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Cuprimine

Generic name: penicillamine

Brand names: Cuprimine, Depen, D-Penamine

Last updated November 2, 2026 0 views
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What is Cuprimine?

Cuprimine is a chelating (KEE-late-ing) agent that attaches to excess copper and helps remove it from the bloodstream. When there is too much copper in the bloodstream, it can cause tissue damage throughout the body.

Cuprimine is used to remove excess copper in people with a genetic condition called Wilson's disease.

Cuprimine is also used to lower urine levels of an amino acid called cystine, which can lead to kidney and bladder stones in people with a genetic condition called cystinuria.

Cuprimine is also used to treat severe rheumatoid arthritis after other medicines have been tried and have not worked. This medicine is not approved for treating juvenile rheumatoid arthritis.

Cuprimine may also be used for other reasons not mentioned in this medication guide.

This section was rewritten for readability and reviewed for meaning.

How should I take Cuprimine?

Follow all the directions on your prescription label and read all medication guides or instruction sheets. Your doctor may change your dose from time to time. Use the medicine exactly as directed.

Take Cuprimine on an empty stomach, at least 1 hour before or 2 hours after a meal.

Drink plenty of liquids while you are taking Cuprimine.

Do not drink milk within 1 hour before or 1 hour after you take Cuprimine.

You will need frequent urine tests.

Your condition may seem to get worse for a short time when you first start taking this medicine. Do not change your doses or medication schedule without your doctor's advice. Every person taking Cuprimine should remain under the care of a doctor.

It may take up to 3 months before your rheumatoid arthritis symptoms improve. Keep using the medication as directed and tell your doctor if your symptoms do not improve.

You may need to follow a special diet while using Cuprimine. Follow all instructions from your doctor or dietitian. Learn about the foods to eat or avoid to help control your condition.

If you do stop taking Cuprimine for any reason, do not start taking it again until you talk to your doctor.

Your doctor may want you to take a multivitamin or take extra iron or vitamin B6 while you are taking Cuprimine. Take only the amount of supplements that your doctor has prescribed.

Store at room temperature away from moisture and heat. Keep the bottle tightly closed when not in use.

This section was rewritten for readability and reviewed for meaning.

Warnings

You should not use Cuprimine if you are breast-feeding, if you have ever had an infection or damage to your blood cells caused by this medicine, or if you have kidney disease and need this medicine to treat rheumatoid arthritis.

Everyone taking Cuprimine should be closely monitored by a doctor.

This section was rewritten for readability and reviewed for meaning.

Before taking this medicine

You should not use Cuprimine if you are allergic to it, or if:

  • you are breast-feeding;
  • you have kidney disease (if using Cuprimine to treat rheumatoid arthritis); or
  • you have developed an infection or damaged blood cells after taking Cuprimine in the past.

Some medicines can cause unwanted or dangerous effects when used with Cuprimine. Your doctor may change your treatment plan if you also use:

  • gold injections;
  • medicine to treat or prevent malaria; or
  • cancer medicine.

Tell your doctor if you have ever had:

  • kidney disease;
  • liver disease;
  • an allergy to penicillin;
  • a stomach ulcer;
  • a weak immune system; or
  • if you are malnourished.

Follow your doctor's instructions about taking Cuprimine if you are pregnant. Do not start or stop taking Cuprimine without your doctor's advice, and tell your doctor right away if you become pregnant.

  • Cuprimine may cause harm to an unborn baby and should not be used to treat cystinuria or rheumatoid arthritis if you are pregnant.
  • Cuprimine may be used during pregnancy to prevent a relapse of Wilson's disease. Not treating this condition during pregnancy can cause harmful or fatal effects on the mother. The benefit of preventing a relapse of Wilson's disease may outweigh any risks to the baby.

You should not breast-feed while using this medicine.

This section was rewritten for readability and reviewed for meaning.

Cuprimine side effects

Get emergency medical help if you have signs of an allergic reaction: hives, rash; swollen glands; difficult breathing; swelling of your face, lips, tongue, or throat.

Cuprimine may cause serious side effects. Call your doctor immediately if you have:

  • new or worsening joint pain;
  • muscle weakness in your arms and legs;
  • muscle weakness in your face, drooping eyelids, double vision, trouble chewing or swallowing;
  • new or worsening cough, fever, trouble breathing;
  • blisters or ulcers in your mouth, red or swollen gums, trouble swallowing;
  • skin rash, peeling, or watery blisters;
  • pain or burning when you urinate, foamy or bloody urine, lower back pain;
  • swelling in your hands, legs, and feet; or
  • low blood cell counts--fever, chills, tiredness, skin sores, easy bruising, unusual bleeding, pale skin, cold hands and feet, feeling light-headed or short of breath.

Common side effects of Cuprimine may include:

  • decreased sense of taste;
  • skin changes such as wrinkling or pimples;
  • stomach pain, nausea, vomiting, diarrhea, loss of appetite;
  • numbness or tingly feeling;
  • ringing in your ears; or
  • a wound that will not heal.

This is not a complete list of side effects, and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

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What happens if I miss a dose?

Take the medicine as soon as you can. If it is almost time for your next dose, skip the missed dose. Do not take two doses at the same time.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Avoid taking other medicines at the same time you take Cuprimine. If you take an iron supplement, take it at least 2 hours before or 2 hours after you take this medicine. Iron can make it harder for your body to absorb this medicine.

Avoid taking mineral supplements, unless your doctor tells you to.

If you have Wilson's disease, avoid eating nuts, chocolate, molasses, liver, shellfish, mushrooms, broccoli, and cereals that are fortified with copper. Also avoid taking mineral supplements that contain copper. If your drinking water supply contains more than 0.1 mg of copper per liter, you may need to drink distilled or demineralized water.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect Cuprimine?

Other drugs may affect Cuprimine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.