Duff Man is correct -- nicotine stimulates metabolism. That's why smokers tend to put on a little weight when they kick the habit.
Best to ditch those cigarettes permanently, not just because it lowers your INR, but because of what smoking does to your lungs, coronary system, etc.
A co-worker has asthma very bad -- misses quite a bit of work because of it and also migraines -- and she smokes like a chimney. She doesn't get it.......
Marsha (7-28-50), MVP 1990/MVR (St. Jude) & ASD repair 6/24/03 Baylor University Medical Center, Dallas Texas. Hometesting since 11/03, first with ProTime 3, now with INRatio.
John (3-13-46), MV repair 5/10/07, Dallas Presbyterian, port-access incision, Dr. William Ryan. Chordae ruptured 12/05 in car crash.