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. 2022 Feb 16;13(2):89–93. doi: 10.14740/jmc3880

Table 1. Calculation of ALDEN Score [4] for Each Drug Recently or Chronically Administrated.

Drug ALDEN score
Causal link Total ALDEN score Type of drug Dechallenge Prechallenge/rechallenge Drug present in the body on index day Delay from initial drug component intake to onset of reaction
Paracetamol Very unlikely -2 Associated: 2
Drug with definite but lower risk
Negative: -2
Drug continued without harm
Negative: -2
Exposure without reaction
Excluded: -3
Drug stopped
Suggestive: +3
From 5 to 28 days
Sodium enoxaparin Very unlikely -5 Not suspected: -1
No evidence of association
Negative: -2
Drug continued without harm
Negative: -2
Exposure without reaction
Excluded: -3
Drug stopped
Suggestive: +3
From 5 to 28 days
Ipratropium bromide Very unlikely -3 Not suspected: -1
No evidence of association
Neutral: 0
Drug stopped or unknown
Negative: -2
Exposure without reaction
Excluded: -3 Drug stopped Suggestive: +3
From 5 to 28 days
Dexamethasone Very unlikely -1 Not suspected: -1
No evidence of association
Neutral: 0
Drug stopped or unknown
Not done/unknown: 0
No known previous exposure
Excluded: -3 Drug stopped Suggestive: +3
From 5 to 28 days
Telmisartan Very unlikely -3 Unknown: 0 Neutral: 0
Drug stopped (or unknown)
Negative: -2
Exposure without reaction
Definite: 0
Drug continued
Unlikely: -1
> 56 days