Hi There My Friend Has Been On Cephylexin For 6

hi there my friend has been on cephylexin for 6 days for an infection and ha another ten days to go on the ceph tabs, but is rather keen to party for a few hours should he stop the antibiotic for the evening and resume in the morning? or is too dangerous to do at all? or keep taking the medicine with whatever he puts in during the partying?