Heparin and Levonorgestrel interaction
Heparin and Levonorgestrel: the Levonorgestrel 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 Levonorgestrel (Skyla) label · effective 2026-03-04
…Skyla with caution after careful assessment if any of the following conditions exist, and consider removal of the system if any of them arise during use: • Coagulopathy or use of anticoagulants • Migraine, focal migraine with asymmetrical visual loss or other symptoms indicating transient cerebral ischemia • Exceptionally severe headache • Marked increase of…
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.