Experiment 628172
Worktypes
Details
| Property | Value |
|---|---|
| Pharmacology | |
| Administration route | ORAL |
| Organism | Camellia sinensis (THEACEAE) |
| Citation | TAYLOR,JR: WILT,VM:. (1999). PROBABLE ANTAGONISM OF WARFARIN BY GREEN TEA.. 33(4) |
| Amount utilized | |
| Compound isolated | |
| Disease | A 44 YEAR -OLD WHITE MAN WAS RECEIVING WARFARIN FOR THROMBOEMBOLIC PROPHYLAXIS SECONDARY TO A ST JUDE MECHANICAL VALVE REPLACEMENT IN THE AORTIC POSITION. THE PATIENT HAD AN INTERNATIONAL NORMALIZED RATIO (INR) OF 3.20 APPROXIMATELY ONE MONTH PRIOR TO ENTERING OUR CLINIC, AND AN INR OF 3.79 ON ENTERING OUR CLINIC. TWENTY-TWO DAYS LATER HIS INR WAS 1.37. ONE MONTH LATER THE PATIENT'S INR WAS 1.14. IT WAS SUBSEQUENTLY DISCOVERED THAT THE PATIENT BEGAN DRINKING ONE-HALF TO ONE GALLON OF GREEN TEA PER DAY ABOUT ONE WEEK PRIOR TO THE INR OF 1.37. ON DISCONTINUATION OF THE GREEN TEA, THE PATIENT'S INR INCREASED TO 2.55. GREEN TEA CAN BE A SIGNIFICANT SOURCE OF VITAMIN K AND THUS ANTAGONIZE THE EFFECT OF WARFARIN. |
| Dose amount | 8.0 L |
| Number | 1 |
| Qualitative result | ACTIVE |
| Animal | HUMAN ADULT |
| Per unit | DAY |
| Dose expression | DOSE |
| Extract | H2O EXT |
| Gender | MALE |