KnowraPhenothiazineLinked fromLinked fromThe 3 pages that link to Phenothiazine, each with the reason it gives.All 3Narrower topic 2Compared with 1ChlorpromazineNarrower topic: Chlorpromazine belongs to the phenothiazine class of antipsychotic drugs.PromethazineNarrower topic: Promethazine is a phenothiazine derivative, though it is not used as an antipsychotic.CarbazoleCompared with: It is a related fused heterocycle with sulfur added to a nitrogen-containing core.