Amoxicillin cross reacts with penicillin on first exposure.
Fellner
M J
MJ
D000328:Adult; D000658:Amoxicillin / Q000009:adverse effects*; D003875:Drug Eruptions / Q000209:etiology*; D004347:Drug Interactions; D005260:Female; D006801:Humans; D010406:Penicillins / Q000009:adverse effects*
D010406:Penicillins; D000658:Amoxicillin