Difenoxin and atropine and Tiotropium interaction
Difenoxin and atropine and Tiotropium: 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 Difenoxin and atropine (Motofen) label · effective 2026-03-23
Usage of MOTOFEN ® in recommended doses is not likely to cause prominent anticholinergic side effects, but MOTOFEN ® should be avoided in patients in whom anticholinergic drugs are contraindicated.
The warnings and precautions for use of anticholinergic agents should be observed.
From the Tiotropium (Spiriva Respimat) label · effective 2026-08-17
Given the similar structural formula of atropine to tiotropium, patients with a history of hypersensitivity reactions to atropine or its derivatives should be closely monitored for similar hypersensitivity reactions to SPIRIVA RESPIMAT.
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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.