Compounds containing in the structure a phenothiazine ringsystem (whether or not hydrogenated), not further fused
Heterocyclic compounds containing in the structure a phenothiazine ringsystem, whether or not hydrogenated, but not further fused (excl. thiethylperazine "inn", and thioridazine "inn" and its salts)
Thiethylperazine "inn"; thioridazine "inn" and its salts