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Bosentan

Bosentan is an approved active ingredient.

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Chemical compound

Informational only — not medical advice. Ask a doctor or pharmacist; never change a dose on your own.

Boxed warning (US label)

RISKS OF HEPATOTOXICITY and EMBRYO-FETAL TOXICITY Because of the risk of hepatotoxicity, TRACLEER is available only through a restricted program called the Bosentan Risk Evaluation and Mitigation Strategy (REMS).

What it is used for

TRACLEER is indicated for the treatment of pulmonary arterial hypertension (PAH) (WHO Group 1): in adults to improve exercise ability and to decrease clinical worsening.

US label

Some improvements have also been shown in patients with PAH WHO functional class II. Stayveer is also indicated to reduce the number of new digital ulcers in patients with systemic sclerosis and ongoing digital-ulcer disease.

EMA

How it works

Common side effects

The following important adverse reactions are described elsewhere in the labeling: Hepatotoxicity Embryo-fetal Toxicity Fluid Retention Common adverse reactions (≥3% more than placebo) for the film-coated tablet are respiratory tract infection and anemia.

US label

Who should not take it

. Use with Cyclosporine A. Use with Glyburide.

US label

Pregnancy and breastfeeding

Based on data from animal reproduction studies, TRACLEER may cause fetal harm, including birth defects and fetal death, when administered to a pregnant female and is contraindicated during pregnancy.

Excerpts from the US prescribing label (public domain), copied without changes.

Interactions

Recorded interactions from open sources (Wikidata, US labels). The list is not complete — ask a pharmacist.

Brand names

United States

Tracleer

European Union

Stayveer · Tracleer

Canada

Alembic-Bosentan · Auro-Bosentan · Pms-Bosentan · Taro-Bosentan · Tracleer

Approval status

US Food and Drug Administration
prescription · since 2001
European Medicines Agency
authorised · since 2002
Health Canada
prescription · marketed
First approval anywhere
2001

Codes

ATC
C02KX01
RxNorm CUI
1468845
ChEMBL
CHEMBL957
PubChem CID
104865
UNII
XUL93R30K2
Wikidata
Q419769

Frequently asked questions

What is Bosentan used for?

Bosentan is used for: Pulmonary hypertension, Systemic scleroderma, Arterial hypertension, Arterial pulmonary hypertension, Congenital heart disease, and Primary pulmonary hypertension.

What are the brand names of Bosentan?

Brand names of Bosentan include Tracleer, Stayveer, Alembic-Bosentan, Auro-Bosentan, Pms-Bosentan, and Taro-Bosentan.

Sources and licences

Updated November 15, 2026