Drug

Polymyxin B

14 flagged reaction(s) · 210 total co-reports · max PRR 42.2

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	41	42.2	44.4	signal
2	Macular Degeneration	18	39.9	40.8	signal
3	Multiple Organ Dysfunction Syndrome	24	22.7	23.4	signal
4	Nephropathy Toxic	8	19.0	19.1	signal
5	Neurotoxicity	12	18.2	18.5	signal
6	Cytomegalovirus Infection	11	17.5	17.7	signal
7	Drug Ineffective For Unapproved Indication	35	16.6	17.3	signal
8	Disseminated Intravascular Coagulation	7	13.1	13.2	signal
9	Treatment Failure	34	10.9	11.4	signal
10	Eosinophilia	7	10.6	10.7	signal
11	Thrombotic Microangiopathy	3	8.2	8.2	signal
12	Tuberculosis	3	6.2	6.2	signal
13	Premature Delivery	3	4.9	5.0	signal
14	Myelosuppression	4	3.1	3.1	no signal