| 摘要 |
<p>An antipruritic containing as the active ingredient a leucotriene C4 or D4 antagonist, in particular, 8-[p-(4-phenylbutoxy)benzoyl]amino-2-(tetrazol-5-yl)-4-oxo-4H-1-benzopyran represented by the formula (I), a harmless salt thereof, or a hydrate thereof. It is useful for treating pruritis, especially, one accompanying hemodialysis.</p> |
