what was the first medication prescribed to patient 44625 until 17 months ago via iv drip route?
select prescriptions.drug from prescriptions where prescriptions.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 44625 ) and prescriptions.route = 'iv drip' and datetime(prescriptions.startdate) <= datetime(current_time,'-17 month') order by prescriptions.startdate asc limit 1