Levorphanol and Tiotropium interaction
Levorphanol and Tiotropium: the Levorphanol prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Levorphanol (Levorphanol Tartrate) label · effective 2026-04-28
Anticholinergic Drugs The concomitant use of anticholinergic drugs may increase risk of urinary retention and/or severe constipation, which may lead to paralytic ileus.
If concomitant use is warranted, evaluate patients for signs of urinary retention or reduced gastric motility when Levorphanol Tartrate Tablets are used concomitantly with anticholinergic drugs.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
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.