Reaction

Rash Morbilliform reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 2,737 reports · 106 co-occurring drugs

As of the last recalculation, Rash Morbilliform appears in 2,737 FAERS reports alongside 106 co-occurring drug terms. The strongest observed disproportionality signal is VANCOMYCIN HYDROCHLORIDE (PRR 28.2).

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
Vancomycin Hydrochloride	225	28.2	28.3
Piperacillin Sodium,Tazobactam Sodium	93	27.6	27.7
Vancomycin	186	26.2	26.3
Piperacillin And Tazobactam	42	25.3	25.4
Cefazolin	30	25.3	25.4
Rifampicin	28	21.3	21.3
Cefepime Hydrochloride	43	20.6	20.7
Cefazolin Sodium	32	20.4	20.5
Micafungin Sodium	22	19.9	19.9
Meropenem	81	19.8	19.8
Piperacillin Sodium And Tazobactam Sodium	48	18.9	19.0
Cefepime	35	18.8	18.8
Pyrazinamide	23	18.8	18.8
Clindamycin	60	16.4	16.4
Clindamycin Phosphate	66	15.4	15.4
Rifampin	29	15.3	15.3
Gentamicin	26	15.3	15.3
Amoxicillin And Clavulanate Potassium	52	14.8	14.8
Enoxaparin Sodium	106	14.5	14.6
Amoxicillin	138	14.4	14.4
Tobramycin Solution	22	14.0	14.1
Ceftriaxone	59	14.0	14.0
Ceftriaxone Sodium	68	13.8	13.8
Tobramycin Sulfate	22	13.6	13.6
Gentamicin Sulfate	28	13.6	13.6
Norepinephrine	19	13.6	13.6
Lamotirigine	119	13.2	13.2
Lamotrigine Extended-Release	119	13.2	13.2
Lamotrigine Chewable Dispersible	119	13.2	13.2
Vemurafenib	20	12.7	12.8
Phenytoin	34	12.5	12.6
Atovaquone	13	12.3	12.4
Ampicillin	13	12.0	12.0
Ampicillin Sodium	13	12.0	12.0
Norepinephrine Bitartrate	22	11.7	11.7
Dalteparin Sodium	16	11.6	11.6
Sulfamethoxazole And Trimethoprim	122	11.5	11.5
Iohexol	12	11.0	11.1
Lamotrigine	179	11.0	11.0
Metronidazole	86	10.5	10.6
Isoniazid	22	10.4	10.4
Metronidazole Topical	59	9.6	9.6
Ciclesonide	17	9.5	9.6
Daptomycin	11	9.1	9.1
Moxifloxacin Hydrochloride	24	9.1	9.1
Bendamustine Hydrochloride	14	8.9	8.9
Heparin Sodium	16	8.9	8.9
Linezolid	34	8.8	8.8
Instalax Polyethylene Glycol 3350	14	8.6	8.6
Dornase Alfa	22	8.6	8.6
Carbamazepine	73	8.5	8.5
Propofol	40	8.4	8.4
Polyethylene Glycol 400	14	8.4	8.4
Rocuronium Bromide	13	8.4	8.4
Moxifloxacin	15	8.1	8.1
Cefuroxime	12	8.0	8.0
Ciprofolxacin	73	7.9	7.9
Ciprofloxacin Tablets	73	7.9	7.9
Tobramycin	24	7.6	7.7
Midazolam	24	7.3	7.3
Oseltamivir Phosphate	23	7.2	7.2
Midazolam Hydrochloride	25	7.1	7.1
Irbesartan	41	7.1	7.1
Ciprofloxacin Hydrochloride	87	7.0	7.0
Nitrofurantoin	15	6.9	7.0
Nitrofurantoin (Monohydrate/Macrocrystals)	15	6.9	6.9
Levofloxacin	53	6.8	6.8
Levofloxacin In 5% Dextrose	53	6.8	6.8
Metolazone	10	6.8	6.8
Rizatriptan Benzoate	9	6.7	6.8
Acetylcysteine	8	6.5	6.5
Ciprofloxacin	74	6.3	6.3
Clobazam	20	6.3	6.3
Darunavir	12	6.1	6.1
Levetiracetam In Sodium Chloride	60	6.0	6.0
Levetiracetam Oral	60	6.0	6.0
Levetiracetam Injection	60	6.0	6.0
Allopurinol	117	5.9	5.9
Valproic Acid	24	5.8	5.8
Lopinavir And Ritonavir	10	5.6	5.6
Iron Sucrose	7	5.6	5.6
Levetiracetam	93	5.4	5.4
Cetiirizine	29	5.3	5.3
Nicotine Polacrilex Mini	10	5.1	5.1
Nicotine Polarilex	10	5.1	5.1
Nevirapine	6	5.1	5.1
Aprepitant	12	5.0	5.0
Pancrelipase	24	4.8	4.8
Fondaparinux Sodium	5	4.7	4.7
Ritonavir	17	4.4	4.4
Fosaprepitant Dimeglumine	8	4.4	4.4
Valacyclovir	24	4.4	4.4
Lacosamide	20	4.1	4.1
Amikacin	9	4.0	4.0
Temozolomide	11	4.0	4.0
Cladribine	5	4.0	4.0
Ipilimumab	21	3.7	3.7
Pemetrexed Disodium	18	3.6	3.6
Pembrolizumab	49	3.6	3.6
Dapagliflozin	13	3.2	3.2
Nivolumab	39	3.1	3.1
Crizotinib	5	3.0	3.0
Lumacaftor And Ivacaftor	3	2.7	2.7
Alpelisib	3	2.6	2.6
Elexacaftor, Tezacaftor, And Ivacaftor	4	2.4	2.4
Ixekizumab	8	1.6	1.6

Related reactions

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