in a month before has loperamide, phenylephrine hcl or fentanyl patch been prescribed to patient 73713?
select count(*)>0 from prescriptions where prescriptions.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 73713 ) and prescriptions.drug in ( 'loperamide', 'phenylephrine hcl', 'fentanyl patch' ) and datetime(prescriptions.startdate,'start of month') = datetime(current_time,'start of month','-1 month')