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Table 1 True sensitization to amoxicillin examined by in vivo cutaneous tests

From: Amoxicillin rash in patients with infectious mononucleosis: evidence of true drug sensitization

Patient Age (years) Gender Culprit drug LTT results Prick test results Intradermal test results Patch test results
1 15 female amoxicillin/clavulanic acid Negative Negative PPL 1:100 and 1:10 Positive Not performed
2 19 female amoxicillin Negative Negative MDM undiluted Positive Not performed
3 29 female amoxicillin/clavulanic acid Negative Negative PPL 1:10 Positive Not performed
4 23 male amoxicillin/clavulanic acid Negative Negative MDM 1:100 and 1:10 Positive Not performed
5 35 male amoxicillin/clavulanic acid Negative Negative Negative Negative
6 24 female amoxicillin/clavulanic acid Negative Negative Negative Negative
7 21 male amoxicillin Negative Not performed Not performed Not performed
8 20 female amoxicillin/clavulanic acid Negative Not performed Not performed Not performed
9 16 male amoxicillin/clavulanic acid Negative Not performed Not performed Not performed
10 27 male amoxicillin/clavulanic acid; cefixime Positive: cefixime Not performed Not performed Not performed
  1. PPL: major determinant: benzylpenicilloyl poly-L-lysine.
  2. MDM: minor determinant mix: sodium benzylpenicillin, benzylpenicilloic acid, sodium benzylpenicilloate.
  3. Bold text: Verified sensitization to penicillin.
  4. Tests were done in the following chronology: LTT → Prick test (non-diluted PPL) → Intradermal test (1:100 dilution of PPL, 1:10 dilution of PPL, non-diluted PPL) → Prick test (non-diluted MDM) → Intradermal test (1:100 dilution of MDM, 1:10 dilution of MDM, non-diluted MDM) → Patch test (culprit drug).