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P2X3 and P2X2/3 receptor antagonists
| Antagonist | P2X3 | P2X2/3 |
|---|---|---|
| Suramin and analogues NF449, NF110 | √ | √ |
| PPADS and derivatives MRS2159 & MRS2257 | √√ | √ |
| Reactive blue 2 and derivatives TNP-ATP | √ | √ |
| A-317491 (selective) | √√√ | √√√ |
| Phenol red | √√√ | √√√ |
| Tetramethylpyrazine | √√ | - |
| RO4 (orally bioavailable, stable in vivo) | √√ | ? |
| Ip5I | √√ | √√ |
| βγcarboxymethylene ATP | √√ | - |
| βγchlorophosphnomethylene ATP | ? | √√ |
| ? | √√ |
