tell me the medication that patient 60014 has been prescribed for the last time until 40 months ago.
select prescriptions.drug from prescriptions where prescriptions.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 60014 ) and datetime(prescriptions.startdate) <= datetime(current_time,'-40 month') order by prescriptions.startdate desc limit 1