Chamomile tea is generally safe but can cause uncomfortable—and sometimes dangerous—side effects when consumed excessively. It's safe to stick to one to two cups a day.

October 24, 2006 (Toronto, ON) - Substitution of generic warfarin for brand-name warfarin (Coumadin, Bristol-Myers Squibb) has no appreciable effect on rates of INR testing or hospitalization for ...

Our study found that the INR was increased in the over-whelming majority (91%) of patients following concomitant use of warfarin and short-term oral corticosteroids. Since most target INR ranges used ...