Updated risk level of drugs and toxins known to induce pulmonary arterial hypertension
| Definite Aminorex Fenfluramine Dexfenfluramine Toxic rapeseed oil Benfluorex | Possible Cocaine Phenylpropanolamine St John’s Wort Chemotherapeutic agents Selective serotonin reuptake inhibitors Pergolide |
| Likely Amphetamines l-tryptophan Methamphetamines | Unlikely Oral contraceptives Oestrogen Cigarette smoking |