| DB00559 | yes | antagonist | Bosentan | approved|investigational | DB00945 | unknown | NA | Acetylsalicylic acid | approved|vet_approved | DB04674 | unknown | NA | 2-HYDROXY-3,5-DIIODOBENZOIC ACID | experimental | DB04883 | unknown | NA | Darusentan | investigational | DB05290 | unknown | NA | SPP 301 | investigational | DB05367 | unknown | NA | Actelion-1 | investigational | DB06268 | yes | antagonist | Sitaxentan | approved|investigational|withdrawn | DB06403 | yes | antagonist | Ambrisentan | approved|investigational | DB08932 | yes | antagonist | Macitentan | approved | DB12548 | unknown | NA | Sparsentan | investigational |