Both the eclectics and Physiomedicalists used “Cactus”, I am not sure which used it first. The best information the history of this plant for medicinal uses is the Lloyd Brothers Drug Treatise by Lloyd, J.U. A Treatise on Cactus grandiflorus, Lloyd Brothers, 1908. I thought I would find a copy on google but it does not seem to be there. I am sure for a nominal fee the Lloyd Library in Cincinnati would make a copy for you.