Serious and occasionally fatal hypersensitivity (anaphylactic) reactions have been reported in patients on penicillin therapy. These reaction are more apt to occur in individuals with a history of penicillin hypersensitivity and/or hypersensitivity reactions to multiple allergens. There have been reports of individuals with a history of penicillin hypersensitivity who have experienced severe reactions when treated with cephalosporins. Before therapy with a penicillin, careful inquiry should be made concerning previous hypersensitivity reactions to penicillins, cephalosporins and other allergens. If an allergic reaction occurs, Viccillin-SX 1500 should be discontinued and the appropriate therapy instituted.
Serious anaphylactic reactions require immediate emergency treatment with adrenaline. Oxygen, IV steroid and airway management, including intubations, should be administered as indicated.
Use in pregnancy & lactation: Animal reproduction studies have revealed no evidence of impaired fertility or harm to the fetus due to ampicillin and sulbactam. However, safety for use in pregnancy and lactation has not been established.