Synonyms: 17a-Azonia-D-homoandrostane,17a,17a-dimethyl-3-(1-methylpyrrolidinio)-, diiodide, (3b,5a)-; 17a-Aza-D-homoandrostane,17a-azonia-D-homoandrostane deriv.; 17a-Methyl-3b-pyrrolidino-17a-aza-D-homo-5a-androstane dimethiodide; HS 692;Naphtho[2,1-f]quinolinium, octadecahydro-1,1,10a,12a-tetramethyl-8-(1-methylpyrrolidinio)-,diiodide, [4aS-(4aa,4bb,6aa,8b,10ab,10ba,12ab)]-