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Prescription medicine

Trientine Brand names: Cuvrior, Syprine

Trientine (Cuvrior) is a prescription medicine with an FDA approval on record since 1985. FDA's NDC Directory lists it from 6 generic labelers, and pharmacies paid $2.30 per trientine HCl 250 mg capsule in the October 7, 2026 NADAC survey.

  • Generic listed

Check it at the source: the trientine FDA label on DailyMed (effective September 1, 2020, Bausch Health US LLC); the NDA 19194 record on Drugs@FDA; every trientine label on DailyMed.

Highlights of the record

FDA label of September 1, 2020; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026; NADAC October 7, 2026

Used for

From the label: indications and usage

Syprine is indicated in the treatment of patients with Wilson’s disease who are intolerant of penicillamine.

Forms and strengths

  • 250 mg
  • 300 mg
  • 500 mg

Capsule; film-coated tablet.

On the market

Earliest approval on file
November 8, 1985 Syprine, Bausch; Drugs@FDA’s file, where older or withdrawn approvals can be missing
Generic approvals
14 first February 7, 2018; 7 with a marketed status in Drugs@FDA
Labelers listed (NDC)
8 of which 6 under generic applications, 2 under brand applications, repackagers included
Last listed patent
May 3, 2039 Cuvrior tablets; not a generic launch date

Supply and safety

Pharmacy cost (NADAC)
$2.30 per capsule Trientine HCl 250 mg capsule
Shortage (FDA)
No current entry
Recalls by its makers (FDA)
No recall recorded
FAERS reports
478 through July 30, 2026

What is trientine used for?

From the label: indications and usage

Syprine is indicated in the treatment of patients with Wilson’s disease who are intolerant of penicillamine. Clinical experience with Syprine is limited and alternate dosing regimens have not been well-characterized; all endpoints in determining an individual patient’s dose have not been well defined. Syprine and penicillamine cannot be considered interchangeable. Syprine should be used when continued treatment with penicillamine is no longer possible because of intolerable or life endangering side effects. Unlike penicillamine, Syprine is not recommended in cystinuria or rheumatoid arthritis. […]

FDA pharmacologic class: Copper Chelator and Metal Chelator.

Source: FDA drug label (Syprine), Bausch Health US LLC, effective September 1, 2020 (SPL set c34f77a7-996b-4470-b5df-d946a7fe5dbe), via openFDA; the full label on DailyMed

Is there a generic for trientine (Cuvrior)?

The FDA approved the first generic trientine on February 7, 2018. 14 generic applications are approved; 7 of them carry a current (not discontinued) marketing status in Drugs@FDA; that status is not evidence that the generic is on sale.

FDA's NDC Directory lists trientine from 6 labelers under a generic (ANDA) application and from 2 brand labelers. A listing means the company has registered the product for sale; it does not show that every pharmacy stocks it.

The Orange Book lists 5 patents for Cuvrior tablets: the compound patent runs to May 3, 2039. A patent or exclusivity date is not the date a generic goes on sale: court cases and settlements move it either way.

  • 1985 earliest approval on file
  • 2018 first generic approved
  • 2039 last listed patent

Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)

What do pharmacies pay for trientine (Cuvrior)?

In CMS's NADAC survey of October 7, 2026, pharmacies paid $2.30 per Trientine HCl 250 mg capsule, down 46% from $4.30 on October 8, 2025. The survey records the price, not the reason for a change; large moves often follow a new generic or a list-price change. The chart's scale runs from the lowest to the highest price shown, not from zero. NADAC is what retail pharmacies paid their wholesalers, per unit, in CMS's monthly survey; what a patient pays depends on insurance and the pharmacy.

  • Trientine HCl 250 mg capsule (generic)
$4.48
$2.30
June 2025October 2026
NADAC per unit, October 7, 2026
Strength and formBrand or genericPharmacy cost30 tablets, or one pen or vial12-month change
Trientine HCl 250 mg capsuleGeneric$2.30 per capsule$69.08-46%

Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price

What do FAERS reports show for trientine?

The FDA Adverse Event Reporting System holds 478 reports that list trientine among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 28 are coded as a death and 93 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.

The most reported reactions

  • Off Label Use (a use or a product term, not a reaction)78
  • Product Dose Omission Issue (a use or a product term, not a reaction)71
  • Treatment Noncompliance32
  • Nausea29
  • Drug Dose Omission (a use or a product term, not a reaction)19
  • Fatigue17
  • Therapy Interrupted (a use or a product term, not a reaction)17
  • Product Storage Error15

Side effects: the label's list and every FAERS reaction

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026

What next?

Trientine side effects
the label's list beside FAERS reports
Check an interaction
what two or more labels say about each other