Synonyms: 6H-Dibenzo[3,4:6,7]cyclohept[1,2-b]oxirene,piperidine deriv.; 10,11-Epoxydesmethylcyproheptadine; Demethylcyproheptadine10,11-epoxide; Desmethylcyproheptadine 10,11-epoxide; Desmethylcyproheptadineepoxide; N-Demethylcyproheptadine 10,11-epoxide