Doxylamine and pyridoxine and Hydrocodone and chlorpheniramine interaction

Doxylamine and pyridoxine and Hydrocodone and chlorpheniramine: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Doxylamine and pyridoxine (Doxylamine succinate and pyridoxine hydrochloride) label · effective 2025-12-03

Major

…hydrochloride delayed-release tablets are contraindicated in women with any of the following conditions: Known hypersensitivity to doxylamine succinate, other ethanolamine derivative antihistamines, pyridoxine hydrochloride or any inactive ingredient in the formulation Monoamine oxidase (MAO) inhibitors intensify and prolong the adverse central nervous system effects…

Contraindicationsby drug classView label on DailyMed
Major

Known hypersensitivity to doxylamine succinate, other ethanolamine derivative antihistamines, pyridoxine hydrochloride or any inactive ingredient in the formulation ( 4 )

Contraindicationsby drug classView label on DailyMed
Major

Central nervous system (CNS) depressants: Concurrent use with alcohol or other CNS depressants is not recommended ( 5.1 )

Warnings and precautionsby drug classView label on DailyMed
Major

Doxylamine succinate and pyridoxine hydrochloride delayed-release tablets use is not recommended if a woman is concurrently using central nervous system (CNS) depressants including alcohol.

Warnings and precautionsby drug classView label on DailyMed
Minor

Interference with urine drug screen: Doxylamine succinate and pyridoxine hydrochloride delayed-release tablets may interfere with urine screening for methadone, opiates and PCP ( 5.3 )

Warnings and precautionsby drug classView label on DailyMed

From the Hydrocodone and chlorpheniramine (Hydrocodone Polistirex and Chlorpheniramine Polistirex extended-release) label · effective 2025-06-26

Major

…ABUSE, AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; MEDICATION ERRORS; CYTOCHROME P450 3A4 INTERACTION; CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS; INTERACTION WITH ALCOHOL; NEONATAL OPIOID WITHDRAWAL SYNDROME WARNING: ADDICTION, ABUSE, AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION;…

Boxed warningby drug classView label on DailyMed
Major

Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death.

Boxed warningby drug classView label on DailyMed
Major

Avoid the use of Hydrocodone Polistirex and Chlorpheniramine Polistirex in patients taking benzodiazepines, other CNS depressants, or alcohol [ see Warning and Precautions (5.8) , Drug Interactions (7.5) ].

Boxed warningby drug classView label on DailyMed
Major

Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death.

Boxed warningby drug classView label on DailyMed
Major

Avoid concurrent use of Hydrocodone Polistirex and Chlorpheniramine Polistirex with alcohol or other central nervous system depressants because additional impairment of central nervous system performance may occur [ see Warnings and Precautions (5.8) ].

Warnings and precautionsby drug classView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.