PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12742193-8 2003 The results of this study demonstrated that the central alpha(2)-blocker clonidine hydrochloride effectively prevents vasospasm, and diminishes the concentration of cerebral dopamine beta-hydroxylase in the hypothalamus and brain stem after experimental subarachnoid haemorrhage in rabbits. Clonidine 73-96 dopamine beta-hydroxylase Oryctolagus cuniculus 174-199