Reaction

Encephalitis Autoimmune reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 1,276 reports · 48 co-occurring drugs

As of the last recalculation, Encephalitis Autoimmune appears in 1,276 FAERS reports alongside 48 co-occurring drug terms. The strongest observed disproportionality signal is ATEZOLIZUMAB (PRR 35.3).

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
Atezolizumab	79	35.3	35.4
Human Immunoglobulin G	40	32.6	32.7
Haloperidol Lactate	47	32.1	32.2
Haloperidol	46	32.0	32.1
Midazolam	42	28.1	28.1
Levetiracetam In Sodium Chloride	119	27.5	27.6
Levetiracetam Oral	119	27.5	27.6
Levetiracetam Injection	119	27.5	27.6
Midazolam Hydrochloride	43	26.9	27.0
Phenytoin	32	25.6	25.7
Adalimumab-Fkjp	68	25.2	25.3
Adalimumab-Aaty	69	25.1	25.1
Durvalumab	30	24.6	24.6
Adalimumab-Adaz	75	24.6	24.6
Ipilimumab	56	22.1	22.1
Nivolumab	117	21.6	21.7
Lacosamide	46	20.9	20.9
Phenobarbital	18	20.5	20.6
Methylprednisolone	151	20.1	20.1
Pembrolizumab	114	19.3	19.3
Levetiracetam	140	19.1	19.1
Brivaracetam	10	18.3	18.3
Axitinib	17	14.4	14.4
Theophylline	10	14.3	14.3
Dutasteride	7	14.1	14.1
Theophylline Anhydrous	10	13.3	13.3
Ceftriaxone	26	13.2	13.2
Mycophenolate Mofetil	97	12.5	12.5
Mycophenolate Mofetil Hydrochloride	97	12.5	12.5
Lenvatinib	24	12.1	12.2
Ceftriaxone Sodium	27	11.7	11.7
Tacrolimus Ointment 0.1%	84	11.7	11.7
Tacrolimus Extended-Release Capsules	84	11.7	11.7
Carboplatin	85	11.6	11.6
Valproic Acid	22	11.6	11.6
Ganciclovir	7	11.2	11.2
Ganciclovir Sodium	7	10.8	10.9
Oxcarbazepine	21	10.7	10.7
Olanzapine	67	10.7	10.7
Clobazam	15	10.1	10.1
Propofol	22	10.0	10.0
Etoposide	43	9.8	9.8
Amantadine	8	8.5	8.5
Paclitaxel (Aibumin-Bound)	37	7.5	7.5
Entecavir	5	7.0	7.0
Bevacizumab	51	7.0	7.0
Pemetrexed Disodium	16	6.9	6.9
Paclitaxel	40	6.8	6.8

Related reactions

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