"77-15-6"@en . "Ethoheptazine (trade name Zactane) is an opioid analgesic from the phenazepine family. It was invented in the 1950s and is related to other drugs such as proheptazine. Ethoheptazine is no longer marketed in the United States."@en . . . . "Ethoheptazine"@en . . . "Etoheptazina"@en . . . . . . . . . "Ethoheptazinum"@en . . . . . "Ethoheptazine"@en . . . . . . . . " "@en . . . "Ethoheptazin"@en . . . . . "U.S. Patent 2,666,050."@en . . "withdrawn"@en . . .