Carbinoxamine and Diphenoxylate and atropine interaction
Carbinoxamine and Diphenoxylate and atropine: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Diphenoxylate and atropine (Diphenoxylate Hydrochloride and Atropine Sulfate) label · effective 2026-02-23
CONTRAINDICATIONS Diphenoxylate hydrochloride and atropine sulfate is contraindicated in: • Pediatric patients less than 6 years of age due to the risks of respiratory and central nervous system (CNS) depression (see WARNINGS ).
WARNINGS Respiratory and/or CNS Depression in Pediatric Patients Less Than 6 Years of Age Cases of severe respiratory depression and coma, leading to permanent brain damage or death have been reported in patients less than 6 years of age who received diphenoxylate hydrochloride and atropine sulfate .
Clinical presentations vary in terms of which toxicity (anticholinergic vs. opioid) will present first or predominate; non-specific findings have been reported and include symptoms such as drowsiness (see OVERDOSAGE ).
Interaction with CNS Depressants Diphenoxylate hydrochloride may potentiate the action of other drugs that cause dizziness or drowsiness, including barbiturates, benzodiazepines and other sedatives/hypnotics, anxiolytics, and tranquilizers, muscle relaxants, general anesthetics, antipsychotics, other opioids, and alcohol.
Drug interactions Alcohol Alcohol may increase the CNS depressant effects of diphenoxylate hydrochloride and atropine sulfate and may cause drowsiness (see WARNINGS ).
From the Carbinoxamine (Carbinoxamine Maleate Extended-Release Oral Suspension) label · effective 2026-03-12
Concomitant Medical Conditions Carbinoxamine Maleate Extended-Release Oral Suspension has anticholinergic (atropine-like) properties and, therefore, should be used with caution in patients with: increased intraocular pressure, narrow angle glaucoma, hyperthyroidism, cardiovascular disease, hypertension, stenosing peptic ulcer, symptomatic prostatic hypertrophy,…
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Open in the checkerNot 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.