how many total doses of neo*iv*caffeine citrate was prescribed to patient 85010 last month?
select sum(prescriptions.dose_val_rx) from prescriptions where prescriptions.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 85010 ) and prescriptions.drug = 'neo*iv*caffeine citrate' and datetime(prescriptions.startdate,'start of month') = datetime(current_time,'start of month','-1 month')