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CUPRIMINE vs SODIUM IODIDE I 131

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 5, 2026·How we rate

Possible drug interaction. CUPRIMINE and SODIUM IODIDE I 131 are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Rating

74/100
70/100

Pharmacy pays

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Type

RX
RX

Active ingredient

PENICILLAMINE
SODIUM IODIDE I-131

Dosage forms

Capsule
Capsule, Solution

Drug class

Antirheumatic Agent
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Boxed warning

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration
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Frequently asked questions

Which is better-rated, Cuprimine or Sodium Iodide I 131?

By our independent rating, Cuprimine scores higher — 3.7 vs 3.5 out of 5 for Sodium Iodide I 131. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Cuprimine and Sodium Iodide I 131?

Cuprimine contains Penicillamine, while Sodium Iodide I 131 contains Sodium Iodide I-131 — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.