Oxybutynin and Umeclidinium and vilanterol interaction
Oxybutynin and Umeclidinium and vilanterol: 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 Umeclidinium and vilanterol (Umeclidinium and Vilanterol Ellipta) label · effective 2024-11-22
Avoid administration of Umeclidinium and Vilanterol ELLIPTA with other anticholinergic-containing drugs.
Therefore, avoid coadministration of Umeclidinium and Vilanterol ELLIPTA with other anticholinergic-containing drugs as this may lead to an increase in anticholinergic adverse effects [see Warnings and Precautions ( 5.9 , 5.10 )] .
From the Oxybutynin (Oxybutynin Chloride Extended Release) label · effective 2026-01-14
Oxybutynin chloride extended-release tablets, like other anticholinergic drugs, may decrease gastrointestinal motility and should be used with caution in patients with conditions such as ulcerative colitis and intestinal atony.
The concomitant use of oxybutynin with other anticholinergic drugs or with other agents which produce dry mouth, constipation, somnolence (drowsiness), and/or other anticholinergic-like effects may increase the frequency and/or severity of such effects.
Co-administration with other anticholinergic drugs may increase the frequency and/or severity of anticholinergic-like effects.
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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.