DISCUSSION Etiology
Described in the literature as toxic pustuloderma or pustular drug rash, AGEP is a pustular cutaneous reaction precipitated by infection or exposure to cer- tain drugs or toxins. Causative agents include bacte- ria, viruses, drugs (most commonly, penicillins and sulfonamides), and toxic chemicals (eg, mercury)1,2,3 (Table 1). Carbamazepine likewise has been known to cause AGEP, although rarely.1,4 Many patients who develop AGEP after carbamazepine administration have a history of prior adverse reaction to drugs. Prior carbamazepine exposure might hasten the onset of the pustular rash as a result of sensitization.
DISCUSSION EtiologyDescribed in the literature as toxic pustuloderma or pustular drug rash, AGEP is a pustular cutaneous reaction precipitated by infection or exposure to cer- tain drugs or toxins. Causative agents include bacte- ria, viruses, drugs (most commonly, penicillins and sulfonamides), and toxic chemicals (eg, mercury)1,2,3 (Table 1). Carbamazepine likewise has been known to cause AGEP, although rarely.1,4 Many patients who develop AGEP after carbamazepine administration have a history of prior adverse reaction to drugs. Prior carbamazepine exposure might hasten the onset of the pustular rash as a result of sensitization.
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