Each film-coated tablet contains 125 mg bosentan (as monohydrate).
Excipient with known effect: This medicine contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially 'sodium-free'.
Excipients/Inactive Ingredients: Tablet core: Maize starch, Pregelatinised starch, Sodium starch glycolate (Type A), Povidone, Glycerol behenate, Magnesium stearate.
Film coat: Hypromellose, Glycerol triacetate, Talc, Titanium dioxide (E171), Iron oxide yellow (E172), Iron oxide red (E172), Ethylcellulose.