Camlipixant (BLU-5937) a potent, selective, non-competitive and orally active P2X3 homotrimeric receptor antagonist with an IC 50 of 25 nM against hP2X3 homotrimeric. Camlipixant shows potent anti-tussive effect and no taste alteration. Camlipixant can be used for the research of unexplained, refractory chronic cough.