Reaction

Muscle Contracture reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 2,017 reports · 45 co-occurring drugs

As of the last recalculation, Muscle Contracture appears in 2,017 FAERS reports alongside 45 co-occurring drug terms. The strongest observed disproportionality signal is EPOETIN ALFA (PRR 32.8).

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
Epoetin Alfa	37	32.8	32.9
Methylphenidate	40	14.5	14.5
Valproate Sodium	26	13.1	13.2
Atropine	8	10.0	10.0
Phenytoin	20	10.0	10.0
Iron Sucrose	9	9.8	9.8
Erythromycin	17	9.4	9.4
Phenobarbital	13	9.3	9.3
Methylphenidate Hydrochloride	51	9.1	9.1
Oxazepam	18	8.7	8.7
Vortioxetine	14	8.5	8.5
Clobazam	20	8.5	8.5
Paricalcitol	11	8.1	8.1
Lithium	19	7.8	7.8
Lithium Bromatum	19	7.8	7.8
Baclofen	63	7.8	7.8
Rasagiline Mesylate	8	7.4	7.4
Haloperidol Lactate	17	7.1	7.1
Erythropoietin	14	7.1	7.1
Haloperidol	16	6.8	6.8
Rivastigmine	12	6.6	6.6
Midazolam	16	6.6	6.6
Midazolam Hydrochloride	17	6.6	6.6
Aripiprazole Oral	26	6.6	6.6
Aripiprazole Orally Disintegrating	26	6.6	6.6
Misoprostol	6	6.4	6.4
Memantine	8	6.1	6.1
Memantine Hydrochloride	8	6.1	6.1
Aripiprazole	62	5.4	5.4
Lapatinib	8	5.3	5.3
Diclofenac Potassium, Film Coated	4	4.9	4.9
Diclofenac Potassium Tablets	4	4.9	4.9
Glatiramer Acetate	28	4.9	4.9
Diclofenac Potassium	5	4.8	4.8
Lacosamide	17	4.7	4.7
Paliperidone Palmitate	14	4.5	4.5
Cenobamate	3	3.7	3.7
Abemaciclib	7	3.6	3.6
Peginterferon Beta-1A	4	3.2	3.2
Paliperidone	7	3.1	3.1
Emicizumab	3	2.5	2.5
Cinacalcet Hydrochloride	10	2.2	2.2
Palivizumab	3	2.0	2.0
Orlistat	5	2.0	2.0
Pimavanserin Tartrate	8	1.5	1.5

Related reactions

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