Table 1.

Calculation of the ALDEN score for each drug administrated during the hospitalization (chronic treatments were excluded) [10]

DRUG	ALDEN score	Causal link
Enoxaparin	−2	Very unlikelya
Oseltamivir	−2	Very unlikely
Ceftriaxone	+1	Unlikely
Potassium Canrenoate	−3	Very unlikely
Pantoprazole	−2	Very unlikelya
Hydroxychloroquine	+4	Possible
Piperacillin/Tazobactam	+1	Unlikely
Dexamethasone	0	Unlikely
Levofloxacin	+1	Unlikely
Paracetamol	−1	Very unlikelya

 < 0: very unlikely

0–1: unlikely

2–3: possible

4–5: probable

 ≥ 6: very probable

^are-challenge without any adverse reactions. Score (−12; +10)