Comparative Pharmacology
Head-to-head clinical analysis: CUVRIOR versus PENICILLAMINE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CUVRIOR versus PENICILLAMINE.
CUVRIOR vs PENICILLAMINE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
CUVRIOR (trientine) is a copper-chelating agent that forms stable complexes with copper, enhancing its excretion in urine. It also reduces intestinal absorption of copper.
Chelates heavy metals (copper, mercury, lead, arsenic) forming soluble complexes excreted renally; also reduces cystine formation in cystinuria by disulfide exchange; immunosuppressive effects via inhibition of T-cell function and collagen synthesis.
300 mg subcutaneously once daily.
250-500 mg orally 4 times daily, with a maximum of 2 g/day; for rheumatoid arthritis, initial dose 125-250 mg/day, increase by 125-250 mg every 1-3 months to usual maintenance of 500-750 mg/day in divided doses.
None Documented
None Documented
Clinical Note
moderatePenicillamine + Digoxin
"The serum concentration of Digoxin can be decreased when it is combined with Penicillamine."
Clinical Note
moderatePenicillamine + Teriflunomide
"The serum concentration of Teriflunomide can be increased when it is combined with Penicillamine."
Clinical Note
moderatePenicillamine + Eltrombopag
"The serum concentration of Eltrombopag can be increased when it is combined with Penicillamine."
Clinical Note
moderatePenicillamine + Iron
Terminal elimination half-life is approximately 0.9–1.5 hours; however, pharmacodynamic effects (copper mobilization) persist for 24–48 hours.
Terminal half-life: 1.5–2 hours for penicillamine; after chronic dosing, a slower phase (t1/2 ~40 hours) appears due to tissue binding. Clinical context: Dosing interval typically 6–8 hours; accumulation may occur in renal impairment.
Primarily hepatobiliary; unchanged drug and metabolites excreted in feces. Renal elimination accounts for <5% of the administered dose.
Renal: ~80% as unchanged drug and metabolites; fecal: ~20% (via biliary elimination).
Category C
Category C
Chelating Agent
Chelating Agent
"Penicillamine can cause a decrease in the absorption of Iron resulting in a reduced serum concentration and potentially a decrease in efficacy."