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phenothiazine phe·no·thi·a·zine (fē'nō-thī'ə-zēn', -nə-)
A yellow organic compound used in veterinary anthelmintics. Also called thiodiphenylamine.
Any of a group of drugs derived from this compound and used as tranquilizers in the treatment of psychiatric disorders, such as schizophrenia.
widely used anthelmintic (worming agent) in veterinary medicine. Phenothiazine is an organic compound effective against a broad range of parasites in cattle, horses, poultry, sheep, and swine. A highly toxic drug, it is not recommended for human use and is not effective in dogs or cats