PRE-PEN® (benzylpenicilloyl polylysine injection USP)

Important Safety Information

The risk of sensitization to repeated skin testing with PRE-PEN® is not established. Rarely, a systemic allergic reaction including anaphylaxis may follow a skin test with PRE-PEN®. To decrease the risk of a systemic allergic reaction, puncture skin testing should be performed first. Intradermal skin testing should be performed only if the puncture test is entirely negative.

PRE-PEN® is contraindicated in those patients who have exhibited either a systemic or marked local reaction to its previous administration. Patients known to be extremely hypersensitive to penicillin should not be skin tested. Please see the package insert for full prescribing information.

No single skin test or combination of tests can completely assure that a reaction to penicillin therapy will not occur.