PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 94621-5 1979 All drugs except d-propranolol and H 35/25, a selective beta 2-adrenoceptor antagonist, enhanced the bradycardic action of clonidine. Clonidine 123-132 adrenoceptor beta 2 Rattus norvegicus 56-75