tell me the name of the drug that patient 58649 was prescribed within the same hospital visit after having received a lt heart angiocardiogram procedure in 08/last year.
select t2.drug from ( select admissions.subject_id, procedures_icd.charttime, admissions.hadm_id from procedures_icd join admissions on procedures_icd.hadm_id = admissions.hadm_id where admissions.subject_id = 58649 and procedures_icd.icd9_code = ( select d_icd_procedures.icd9_code from d_icd_procedures where d_icd_procedures.short_title = 'lt heart angiocardiogram' ) and datetime(procedures_icd.charttime,'start of year') = datetime(current_time,'start of year','-1 year') and strftime('%m',procedures_icd.charttime) = '08' ) as t1 join ( select admissions.subject_id, prescriptions.drug, prescriptions.startdate, admissions.hadm_id from prescriptions join admissions on prescriptions.hadm_id = admissions.hadm_id where admissions.subject_id = 58649 and datetime(prescriptions.startdate,'start of year') = datetime(current_time,'start of year','-1 year') and strftime('%m',prescriptions.startdate) = '08' ) as t2 on t1.subject_id = t2.subject_id where t1.charttime < t2.startdate and t1.hadm_id = t2.hadm_id