▁contra cept ives . ▁More ▁studies ▁on ▁the ▁possible ▁interactions ▁between ▁ant ib iot ics ▁and ▁birth ▁control ▁p ills ▁( oral ▁contra cept ives ) ▁are ▁required ▁as ▁well ▁as ▁careful ▁assess ment ▁of ▁patient - specific ▁risk ▁factors ▁for ▁potential ▁or al ▁contract ive ▁pill ▁failure ▁prior ▁to ▁dismiss ing ▁the ▁need ▁for ▁backup ▁contra ception . ▁ ▁Al co hol ▁Inter actions ▁between ▁alco hol ▁and ▁certain ▁ant ib iot ics ▁may ▁occur ▁and ▁may ▁cause ▁side ▁effects ▁and ▁decre ased ▁effect iveness ▁of ▁ant ib i otic ▁ther apy . ▁While ▁moder ate ▁alco hol ▁consumption ▁is ▁unlikely ▁to ▁inter f ere ▁with ▁many ▁common ▁ant ib iot ics , ▁there ▁are ▁specific ▁types ▁of ▁ant ib iot ics , ▁with ▁which ▁alco hol ▁consumption ▁may ▁cause ▁serious ▁side ▁effects . ▁Therefore , ▁potential ▁ris ks ▁of ▁side ▁effects ▁and ▁effect iveness ▁depend ▁on ▁the ▁type ▁of ▁ant ib i otic ▁admin ister ed . ▁ ▁Ant ib iot ics ▁such ▁as ▁met ron id az ole , ▁tin id az ole , ▁ce ph am ando le , ▁lat am ox ef , ▁c ef oper az one , ▁c ef men ox ime , ▁and ▁fur az olid one , ▁cause ▁a ▁dis ulf ir am - like ▁chemical ▁reaction ▁with ▁alco hol ▁by ▁in hib iting ▁its ▁break down ▁by ▁ac etal de hy de ▁de h ydro gen ase , ▁which ▁may ▁result ▁in ▁vom iting , ▁n ause a , ▁and ▁short ness ▁of