Drugs and toxins associated with pulmonary artery hypertension
| Definite association | Possible association |
| Aminorex | Alkylating agents (cyclophosphamide, mitomycin C)a |
| Benfluorex | Amphetamines |
| Dasatinib | Bosutinib |
| Dexfenfluramine | Cocaine |
| Fenfluramine | Diazoxide |
| Methamphetamines | Direct-acting antiviral agents against hepatitis C virus (sofosbuvir) |
| Toxic rapeseed oil | Indirubin (Chinese herb Qing-Dai) |
| Interferon alpha and beta | |
| Leflunomide | |
| L-tryptophan | |
| Phenylpropanolamine | |
| Ponatinib | |
| Selective proteasome inhibitors (carfilzomib) | |
| Solvents (trichloroethylene) a | |
| St John's Wort |
aPulmonary veno-occlusive disease.