how many days have it been since patient 8888 first received a clopidogrel bisulfate prescription in this hospital encounter?
select 1 * ( strftime('%j',current_time) - strftime('%j',prescriptions.startdate) ) from prescriptions where prescriptions.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 8888 and admissions.dischtime is null ) and prescriptions.drug = 'clopidogrel bisulfate' order by prescriptions.startdate asc limit 1