Clinical data
AHFS/Drugs.com International Drug Names
Routes of
ATC code G02CB06 (WHO)
Legal status
Legal status
  • ℞ (Prescription only)
CAS Number 37686-84-3
PubChem (CID) 443951
ChemSpider 392004
UNII 21OJT43Q88 YesY
KEGG D01348 YesY
ECHA InfoCard 100.048.732
Chemical and physical data
Formula C20H28N4O
Molar mass 340.46 g/mol
3D model (Jmol) Interactive image

Terguride (INN), also known as trans-dihydrolisuride, is a serotonin receptor antagonist and dopamine receptor agonist of the ergoline family. It is approved for and used in the treatment of hyperprolactinemia. Terguride is an oral, potent antagonist of 5-HT2B and 5-HT2A (serotonin) receptors. Serotonin stimulates the proliferation of pulmonary artery smooth muscle cells, and induces fibrosis in the wall of pulmonary arteries. Together, this causes vascular remodeling and narrowing of the pulmonary arteries. These changes result in increased vascular resistance and PAH. Due to the potential anti-proliferative and anti-fibrotic activity of terguride, this potential medicine could offer the hope of achieving reversal of pulmonary artery vascular remodeling and attenuation of disease progression.[1]

In May 2008, terguride was granted orphan drug status for the treatment of pulmonary arterial hypertension.[2] In May 2010 Pfizer purchased worldwide rights for the drug.[3]


  1. Janssen W, Schymura Y, Novoyatleva T, Kojonazarov B, Boehm M, Wietelmann A, Luitel H, Murmann K, Krompiec DR, Tretyn A, Pullamsetti SS, Weissmann N, Seeger W, Ghofrani HA, Schermuly RT. 5-HT2B Receptor Antagonists Inhibit Fibrosis and Protect from RV Heart Failure. Biomed Research International. 2015;2015:438403. doi 10.1155/2015/438403 PMID 25667920
  2. Presseportal (Swiss press portal, in German)
  3. TheDay.com 5/10/2010

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