Reaction

International Normalised Ratio Abnormal reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 3,428 reports · 51 co-occurring drugs

As of the last recalculation, International Normalised Ratio Abnormal appears in 3,428 FAERS reports alongside 51 co-occurring drug terms. The strongest observed disproportionality signal is WARFARIN SODIUM (PRR 111.4).

Important: FAERS is a spontaneous, voluntary, unverified reporting system. PRR and ROR identify reporting patterns for investigation; they are not incidence rates and do not establish causation.

Drug	Co-reports	PRR	ROR
Warfarin Sodium	683	111.4	113.1
Warfarin	1,265	95.2	96.2
Enoxaparin Sodium	112	12.2	12.2
Lithium Carbonate	33	11.9	11.9
Digoxin	135	11.9	11.9
Dabigatran Etexilate	135	10.9	11.0
Dabigatran Etexilate Mesylate	121	10.4	10.5
Febuxostat Tablets 40 Mg	15	9.0	9.0
Febuxostat Tablets 80 Mg	15	9.0	9.0
Torsemide	42	7.8	7.8
Goserelin	17	7.7	7.7
Dronedarone	12	7.2	7.2
Eplerenone	15	7.1	7.1
Dofetilide	12	7.0	7.0
Febuxostat	19	6.9	6.9
Sotalol Hydrochloride	18	6.6	6.6
Telmisartan	18	6.2	6.2
Iron Sucrose	9	5.7	5.7
Phytonadione	8	5.7	5.7
Rifampicin	9	5.4	5.4
Ribociclib	26	5.0	5.0
Amiodarone Hydrochloride	9	4.9	4.9
Acalabrutinib	9	4.5	4.5
Bisoprolol Fumarate	97	4.4	4.4
Felodipine Extended-Release Tablets	8	4.3	4.3
Felodipine	8	4.3	4.3
Nebivolol	11	4.2	4.2
Bosentan	34	4.1	4.1
Rifampin	9	3.8	3.8
Metoprolol Tartrate Injection	114	3.7	3.7
Riociguat	20	3.7	3.7
Pazopanib Hydrochloride	15	3.4	3.4
Eculizumab	30	3.4	3.4
Rivaroxaban	111	3.3	3.3
Prochlorperazine Maleate	5	3.3	3.3
Enzalutamide	31	3.2	3.2
Ranolazine	5	2.9	2.9
Selexipag	12	2.8	2.8
Rucaparib	4	2.8	2.8
Apixaban	30	2.7	2.7
Macitentan	31	2.7	2.7
Treprostinil	52	2.5	2.5
Velpatasvir And Sofosbuvir	5	2.4	2.4
Inclisiran	3	2.3	2.3
Abiraterone	5	2.2	2.2
Apalutamide	4	2.1	2.1
Alteplase	5	2.0	2.0
Sacubitril And Valsartan	33	1.7	1.7
Ambrisentan	29	1.4	1.4
Abiraterone Acetate	9	1.3	1.3
Relugolix	5	1.3	1.3

Related reactions

Data source: openFDA FAERS. See the OpenPV methodology and limitations.