DEXTROMETHORPHAN POLISTIREX

N/A

Manufactured by Haleon US Holdings LLC

1,242 FDA adverse event reports analyzed

Last updated: 2026-04-15

About DEXTROMETHORPHAN POLISTIREX

DEXTROMETHORPHAN POLISTIREX is a medication tracked in the FDA Adverse Event Reporting System (FAERS), manufactured by Haleon US Holdings LLC. The most commonly reported adverse reactions for DEXTROMETHORPHAN POLISTIREX include DRUG INEFFECTIVE, DIARRHOEA, DIZZINESS, NAUSEA, DRUG EFFECT INCOMPLETE. This page provides a comprehensive breakdown of reported side effects, safety signals, patient demographics, and AI-powered safety analysis for DEXTROMETHORPHAN POLISTIREX.

Top Adverse Reactions

DRUG INEFFECTIVE279 reports
DIARRHOEA76 reports
DIZZINESS42 reports
NAUSEA38 reports
DRUG EFFECT INCOMPLETE34 reports
HYPERSENSITIVITY30 reports
SOMNOLENCE28 reports
INCORRECT DOSE ADMINISTERED27 reports
CONDITION AGGRAVATED26 reports
FEELING ABNORMAL23 reports
MALAISE23 reports
VOMITING22 reports
DRUG HYPERSENSITIVITY18 reports
INAPPROPRIATE SCHEDULE OF DRUG ADMINISTRATION18 reports
RASH17 reports
INSOMNIA16 reports
ABDOMINAL PAIN UPPER15 reports
COUGH15 reports
FATIGUE15 reports
HEADACHE15 reports
INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION15 reports
OVERDOSE15 reports
ASTHENIA13 reports
CONSTIPATION13 reports
PRURITUS13 reports
THERAPEUTIC RESPONSE SHORTENED13 reports
PNEUMONIA11 reports
BALANCE DISORDER10 reports
WRONG TECHNIQUE IN PRODUCT USAGE PROCESS10 reports
URTICARIA9 reports
BLOOD GLUCOSE INCREASED8 reports
DYSPNOEA8 reports
OFF LABEL USE8 reports
PYREXIA8 reports
UNDERDOSE8 reports
VISION BLURRED8 reports
ABDOMINAL DISCOMFORT7 reports
BLOOD PRESSURE INCREASED7 reports
EXPIRED PRODUCT ADMINISTERED7 reports
HYPOAESTHESIA7 reports
PAIN7 reports
PRODUCT TASTE ABNORMAL7 reports
THERAPEUTIC PRODUCT EFFECT INCOMPLETE7 reports
TREMOR7 reports
ABNORMAL BEHAVIOUR6 reports
ANXIETY6 reports
CONFUSIONAL STATE6 reports
FALL6 reports
MYDRIASIS6 reports
OROPHARYNGEAL PAIN6 reports
PARAESTHESIA6 reports
PRODUCT USE IN UNAPPROVED INDICATION6 reports
SLEEP DISORDER DUE TO GENERAL MEDICAL CONDITION, INSOMNIA TYPE6 reports
ASTHMA5 reports
DEATH5 reports
DECREASED APPETITE5 reports
DYSPEPSIA5 reports
ERYTHEMA5 reports
EXTRA DOSE ADMINISTERED5 reports
GAIT DISTURBANCE5 reports
GASTROOESOPHAGEAL REFLUX DISEASE5 reports
HEART RATE INCREASED5 reports
ILLNESS5 reports
INCORRECT PRODUCT ADMINISTRATION DURATION5 reports
NASOPHARYNGITIS5 reports
RENAL FAILURE5 reports
RETCHING5 reports
SINUSITIS5 reports
ACCIDENTAL OVERDOSE4 reports
ALOPECIA4 reports
ARTHRALGIA4 reports
COVID 194 reports
DRUG INTERACTION4 reports
FEELING JITTERY4 reports
INCORRECT DRUG ADMINISTRATION DURATION4 reports
LETHARGY4 reports
LIP SWELLING4 reports
MUSCLE SPASMS4 reports
PAIN IN EXTREMITY4 reports
PRODUCT DOSE OMISSION ISSUE4 reports
PRODUCTIVE COUGH4 reports
UNRESPONSIVE TO STIMULI4 reports
ABNORMAL DREAMS3 reports
APHONIA3 reports
BLOOD POTASSIUM DECREASED3 reports
DEHYDRATION3 reports
DRUG DEPENDENCE3 reports
DRY MOUTH3 reports
DYSGEUSIA3 reports
DYSPHONIA3 reports
ENERGY INCREASED3 reports
FEELING DRUNK3 reports
HYPERHIDROSIS3 reports
INTENTIONAL DOSE OMISSION3 reports
INTENTIONAL PRODUCT USE ISSUE3 reports
LOSS OF CONSCIOUSNESS3 reports
OXYGEN SATURATION DECREASED3 reports
PERIPHERAL SWELLING3 reports
PRESYNCOPE3 reports
RHINORRHOEA3 reports

Report Outcomes

Out of 748 classified reports for DEXTROMETHORPHAN POLISTIREX:

Serious 10.8%Non-Serious 89.2%

The FDA classifies an adverse event as “serious” if it results in death, hospitalization, disability, congenital anomaly, or requires intervention to prevent permanent damage.

Demographics Breakdown

Reports by Sex

Female92 (67.2%)
Male45 (32.8%)

Reports by Age

Age 625 reports
Age 214 reports
Age 684 reports
Age 844 reports
Age 353 reports
Age 413 reports
Age 423 reports
Age 453 reports
Age 603 reports
Age 633 reports
Age 663 reports
Age 733 reports
Age 02 reports
Age 142 reports
Age 282 reports
Age 342 reports
Age 382 reports
Age 402 reports
Age 462 reports
Age 572 reports

Demographics reflect voluntary FDA adverse event reporting patterns and may not represent the full patient population.

Frequently Asked Questions

How many FDA adverse event reports are associated with DEXTROMETHORPHAN POLISTIREX?

This profile reflects 1,242 FDA FAERS reports that mention DEXTROMETHORPHAN POLISTIREX. Reporting is voluntary and does not prove that the drug caused any listed event.

Which adverse reactions are most often listed for DEXTROMETHORPHAN POLISTIREX?

Frequently reported terms in FAERS include DRUG INEFFECTIVE, DIARRHOEA, DIZZINESS, NAUSEA, DRUG EFFECT INCOMPLETE, HYPERSENSITIVITY. Rankings reflect reporting volume in this dataset, not confirmed side effect rates in the general population.

Who manufactures DEXTROMETHORPHAN POLISTIREX?

Labeling and FAERS entries often list Haleon US Holdings LLC in connection with DEXTROMETHORPHAN POLISTIREX. Always verify the specific product and NDC with your pharmacist.

Important Disclaimer: This content is generated by AI analysis of FDA adverse event reports and is provided for informational purposes only. It is not medical advice. Adverse event reports submitted to the FDA do not prove that a medication caused the reported side effect. Always consult your healthcare provider before starting, stopping, or changing any medication. If you experience a serious side effect, contact your doctor or call 911 immediately.