Irinotecan and Scopolamine interaction
Irinotecan and Scopolamine: the Irinotecan prescribing label flags 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 Irinotecan (Camptosar) label · effective 2026-05-12
Early diarrhea may be accompanied by cholinergic symptoms which may be prevented or ameliorated by atropine.
• Diarrhea and Cholinergic Reactions : Early diarrhea (occurring during or shortly after infusion of CAMPTOSAR) is usually transient and may be accompanied by cholinergic symptoms.
It may be accompanied by cholinergic symptoms of rhinitis, increased salivation, miosis, lacrimation, diaphoresis, flushing, and intestinal hyperperistalsis that can cause abdominal cramping.
Diarrhea and Cholinergic Reactions Early diarrhea (occurring during or shortly after infusion of CAMPTOSAR) is usually transient and infrequently severe.
Early diarrhea and other cholinergic symptoms may be prevented or treated.
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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.