Discontinue use &/or institute appropriate therapy if superinfections occur (usually involving Pseudomonas or Candida). Discontinue use if allergic reaction occurs. Risk of hypersensitivity reactions in individuals w/ history of penicillin hypersensitivity &/or hypersensitivity reactions to multiple allergens. Not to be administered to patients w/ mononucleosis. Possibility of superinfections w/ mycotic or bacterial pathogens during therapy. May cause severe skin reactions eg, TEN, SJS, dermatitis exfoliative, erythema multiforme & acute generalized exanthematous pustulosis; closely monitor if patients develop skin rash & discontinue if lesions progress. Reports of
Clostridium difficile-associated diarrhea (CDAD). Consider CDAD in all patients who present w/ diarrhea following antibacterial use. Discontinue use if CDAD is suspected or confirmed. Associated w/ hepatic dysfunction, including hepatitis & cholestatic jaundice; monitor hepatic function at regular intervals in patients w/ hepatic impairment. Pregnancy & lactation.