Phenothiazine and Thiazine

Phenothiazine noun - A compound used primarily in veterinary medicine to rid farm animals of internal parasites.

Thiazine and phenothiazine are semantically related. In some cases you can use "Thiazine" instead a noun "Phenothiazine".

Thiazine noun - A compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom.

Phenothiazine and thiazine are semantically related. Sometimes you can replace term "Phenothiazine" with "Thiazine", this nouns are similar.