sentences:  In the fields of pharmacology/toxicology he published an influential work on water and poison hemlock called "Cicutae aquaticae historia et noxae" (1679).This contained the first reports of toxicity of plants from the genus "Cicuta", ultimately attributed to compounds such as cicutoxin and oenanthotoxin.Since 2005 an annual award for stroke research, named after Wepfer, is awarded at the European stroke conference.,