Clonidine rhymes with:
pentamidine, thymidine, aberdeen, ardene, azidothymidine, gabardine, histidine, jayewardene, mujahadeen, pentamidine, thymidine, undine
Clonidine sounds like:
celandine, celentano, clanton, claymation, clementine, clendenen, clendenin, clinton, colantonio, colantuono, culmination