CACNA1I and Pruritus: Mib (i.d. 10 nmol) also significantly inhibitedNaHS-induced flinching (41.8 ± 1.0 vs.18.0 ± 0.9;P < 0.001; Fig. 5D).We further asked whether zinc chloride (ZnCl2) or ascorbic acid(Asc), two selectively inhibitors for Cav3.242, butnot Cav3.1 or Cav3.3, isoforms of T-type calcium channels,affects NaHS-induced itch.