For the oxy-cinnamic acids see Coumarin.
These researches incidentally solved the constitution of coumarin, the odoriferous principle of woodruff.
This was followed by the production of heliotropin, coumarin and vanillin, and later on by the artificial preparation of ionone, the most characteristic constituent of the violet scent.
However, very rare cases of modification of the INR values have been reported with concomitant use of Rozex and coumarin anticoagulants.
Warfarin and other coumarin derivatives Co-administration of fluvastatin with warfarin may commonly cause significant increases in prothrombin time.