Drug

Ceftolozane And Tazobactam

23 flagged reaction(s) · 459 total co-reports · max PRR 25.4

Important: Reactions below are the flagged terms from this drug’s FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate disproportionality in spontaneous reporting, not causation. Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.

	Reaction	Co-reports (a)	PRR	ROR	Signal
1	Drug Resistance	30	25.4	26.2	signal
2	Encephalopathy	23	20.4	20.9	signal
3	Pneumocystis Jirovecii Pneumonia	9	19.6	19.8	signal
4	Agranulocytosis	16	18.8	19.1	signal
5	Status Epilepticus	9	17.3	17.4	signal
6	Hepatocellular Injury	11	16.8	17.0	signal
7	Generalised Tonic-clonic Seizure	11	14.6	14.8	signal
8	Rash Maculo-papular	14	13.7	13.9	signal
9	Septic Shock	25	12.6	12.9	signal
10	Product Use In Unapproved Indication	128	11.4	13.0	signal
11	No Adverse Event	89	10.9	11.9	signal
12	Pancytopenia	26	10.1	10.4	signal
13	Incorrect Product Administration Duration	8	8.6	8.6	signal
14	Lymphopenia	5	7.7	7.8	signal
15	Eosinophilia	6	7.5	7.5	signal
16	Inability To Afford Medication	3	6.6	6.6	signal
17	Circumstance Or Information Capable Of Leading To Medication Error	10	6.5	6.5	signal
18	Poor Quality Product Administered	3	6.4	6.4	signal
19	Drug Effective For Unapproved Indication	8	6.0	6.0	signal
20	Nephropathy Toxic	3	5.9	5.9	signal
21	Incorrect Product Storage	3	4.9	4.9	signal
22	Product Preparation Error	4	4.2	4.2	signal
23	Product Storage Error	15	3.8	3.8	signal