Trientine Hydrochloride

Indications

INDICATIONS AND USAGE Trientine hydrochloride capsules USP 250 mg is indicated in the treatment of patients with Wilson's disease who are intolerant of penicillamine. Clinical experience with trientine hydrochloride capsules USP 250 mg 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. Trientine hydrochloride capsules USP 250 mg and penicillamine cannot be considered interchangeable. Trientine hydrochloride capsules USP 250 mg should be used when continued treatment with penicillamine is no longer possible because of intolerable or life endangering side effects. Unlike penicillamine, trientine hydrochloride capsules USP 250 mg is not recommended in cystinuria or rheumatoid arthritis. The absence of a sulfhydryl moiety renders it incapable of binding cystine and, therefore, it is of no use in cystinuria.

Dosage and administration (summary)

DOSAGE AND ADMINISTRATION Systemic evaluation of dose and/or interval between dose has not been done. However, on limited clinical experience, the recommended initial dose of trientine hydrochloride capsules USP 250 mg is 500 to 750 mg/day for pediatric patients and 750 to 1250 mg/day for adults given in divided doses two, three or four times daily. This may be increased to a maximum of 2000 mg/day for adults or 1500 mg/day for pediatric patients age 12 or under. The daily dose of trientine hydrochloride capsules USP 250 mg should be increased only when the clinical response is not adequate or the concentration of free serum copper is persistently above 20 mcg/dL.

Contraindications

CONTRAINDICATIONS Hypersensitivity to this product.

Warnings and precautions

WARNINGS Patient experience with trientine hydrochloride is limited (see CLINICAL PHARMACOLOGY ). Patients receiving trientine hydrochloride should remain under regular medical supervision throughout the period of drug administration. Patients (especially women) should be closely monitored for evidence of iron deficiency anemia.

Pregnancy

Pregnancy Category C Trientine hydrochloride was teratogenic in rats at doses similar to the human dose. The frequencies of both resorptions and fetal abnormalities, including hemorrhage and edema, increased while fetal copper levels decreased when trientine hydrochloride was given in the maternal diets of rats.

Storage and supply

HOW SUPPLIED Trientine hydrochloride capsules, USP 250 mg, are capsules with light brown opaque body imprinted with "250" and light brown opaque cap imprinted with "TRN" in black ink. They are supplied as follows: NDC 72205-008-91 in bottles of 100. STORAGE Dispense in a tight container and store in a refrigerator; 2 to 8°C (36 to 46°F).

Source: Trientine Hydrochloride (Trientine Hydrochloride) — US FDA prescribing information, 2022-06-15, DailyMed. Summarised and shortened; the full label governs. Iranian registration, indications and labelling may differ.