Reaction

Mutism reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 1,426 reports · 43 co-occurring drugs

As of the last recalculation, Mutism appears in 1,426 FAERS reports alongside 43 co-occurring drug terms. The strongest observed disproportionality signal is HALOPERIDOL (PRR 40.9).

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
Haloperidol	65	40.9	41.0
Haloperidol Lactate	66	40.8	40.9
Lithium Carbonate	25	21.8	21.9
Lithium	36	21.4	21.4
Lithium Bromatum	36	21.4	21.4
Dimenhydrinate	15	20.8	20.8
Olanzapine	128	19.0	19.0
Risperidone	144	17.5	17.5
Valproate Sodium	24	17.2	17.2
Aripiprazole Oral	45	16.4	16.4
Aripiprazole Orally Disintegrating	45	16.4	16.4
Bisacodyl Suppositories	14	15.9	16.0
Biscodyl	14	15.8	15.8
Oxazepam	22	15.2	15.2
Brivaracetam	9	14.7	14.7
Bisacodyl	14	14.7	14.7
Amantadine	15	14.3	14.3
Ziprasidone	17	14.2	14.3
Olanzapine Pamoate	35	12.8	12.8
Sevoflurane	7	12.3	12.4
Ketoprofen	11	12.3	12.3
Valproic Acid	26	12.2	12.3
Ziprasidone Mesylate	11	11.3	11.3
Phenytoin	16	11.3	11.3
Lactulose	29	11.2	11.3
Blinatumomab	8	11.2	11.3
Aripiprazole	84	10.6	10.6
Clozapine	84	10.3	10.3
Zonisamide	10	9.9	9.9
Levetiracetam In Sodium Chloride	45	8.7	8.7
Levetiracetam Oral	45	8.7	8.7
Levetiracetam Injection	45	8.7	8.7
Levodopa	7	8.5	8.5
Methadone Hydrochloride	6	8.1	8.1
Memantine	7	7.5	7.5
Memantine Hydrochloride	7	7.5	7.5
Axicabtagene Ciloleucel	5	7.4	7.4
Amphetamine	4	7.1	7.1
Bosutinib	4	6.5	6.5
Paliperidone	10	6.3	6.3
Pemetrexed	9	6.2	6.2
Methylphenidate	11	5.6	5.6
Paliperidone Palmitate	8	3.6	3.6

Related reactions

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