when has patient 25814 been prescribed medication for the first time since 11/2102 via ir route?
select prescriptions.startdate from prescriptions where prescriptions.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 25814 ) and prescriptions.route = 'ir' and strftime('%y-%m',prescriptions.startdate) >= '2102-11' order by prescriptions.startdate asc limit 1