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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE: 5,305 Adverse Event Reports & Safety Profile

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5,305
Total FAERS Reports
2,936 (55.3%)
Deaths Reported
282
Hospitalizations
5,305
As Primary/Secondary Suspect
13
Life-Threatening
12
Disabilities

Active Ingredient: DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE SULFATE ·

First Report: 20000101 · Latest Report: 20250926

What Are the Most Common DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE Side Effects?

#1 Most Reported
Death
2,780 reports (52.4%)
#2 Most Reported
Product use in unapproved indication
211 reports (4.0%)
#3 Most Reported
Off label use
157 reports (3.0%)

All DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE Side Effects by Frequency

Side Effect Reports % of Total Deaths Hosp.
Death 2,780 52.4% 2,780 20
Product use in unapproved indication 211 4.0% 28 15
Off label use 157 3.0% 8 8
Drug ineffective 137 2.6% 7 8
Therapy interrupted 130 2.5% 5 10
Dizziness 117 2.2% 1 11
Product use issue 114 2.2% 35 9
Diarrhoea 97 1.8% 1 9
Fall 91 1.7% 13 29
Inability to afford medication 86 1.6% 0 2
Therapeutic response unexpected 85 1.6% 4 7
Dysphagia 84 1.6% 9 3
Somnolence 82 1.6% 4 8
Nausea 73 1.4% 0 11
Disease recurrence 72 1.4% 6 8
Crying 66 1.2% 1 7
Drug effective for unapproved indication 66 1.2% 1 1
Aggression 60 1.1% 1 6
Agitation 60 1.1% 7 16
Condition aggravated 60 1.1% 2 2

Who Reports DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE Side Effects? Age & Gender Data

Gender: 65.4% female, 34.6% male. Average age: 69.5 years. Most reports from: US. View detailed demographics →

Is DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE Getting Safer? Reports by Year

YearReportsDeathsHosp.
2000 1 0 0
2001 1 0 0
2003 1 0 0
2007 1 0 1
2010 3 0 0
2011 56 2 1
2012 51 1 1
2013 61 0 3
2014 82 3 18
2015 147 9 30
2016 189 41 27
2017 112 54 25
2018 171 111 10
2019 345 292 10
2020 241 220 3
2021 193 178 7
2022 162 140 8
2023 156 107 10
2024 161 118 4
2025 46 37 2

View full timeline →

What Is DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE Used For?

IndicationReports
Product used for unknown indication 2,689
Affect lability 2,065
Crying 85
Dementia 56
Amyotrophic lateral sclerosis 54
Depression 44
Dementia alzheimer's type 43
Anxiety 33
Craniocerebral injury 33
Agitation 29

DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs Alternatives: Which Is Safer?

DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DEXTROMETHORPHAN\GUAIFENESIN DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DEXTROSE DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DEXTROSE\DEXTROSE DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DEXTROSE\DEXTROSE\DOBUTAMINE\DOBUTAMINE DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DEXTROSE\HEPARIN DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DEXTROSE\LIDOCAINE DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DEXTROSE\SODIUM DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DIACETYLMORPHINE DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DIAMORPHINE DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE vs DIATRIZOATE MEGLUMINE\DIATRIZOATE

Official FDA Label for DEXTROMETHORPHAN HYDROBROMIDE\QUINIDINE

Official prescribing information from the FDA-approved drug label.