Here's what rhymes with strychnine.

Consider these alternatives

diazepam / can alkaloid / avoid phenobarbital / phenobarbitol poisoning / moistening cyanide / side codeine / seen salicylate / late dexamethasone / testimony chloroform / form physostigmine / strychnine atropine / line curare / their lidocaine / procaine scopolamine / mean caffeine / seen melamine / mean methanol / alcohol poison / cloisonne metronidazole / holy methylphenidate / state paracetamol / regional diuretic / magnetic emetic / magnetic metabolites / rights epinephrine / line polonium / chromium mescaline / seen isotretinoin / join allopurinol / small