Person thats experiencing bad side effects on warfarin?

Unusual. What kind of side effects? Certainly there are shots that can be given in place of warfarin but that means giving yourself a shot once or twice a day. The new pills are also a possibility but they have the downside of us not having much experience with reversing their anticoagulant effects if you have a dangerous episode of bleeding.
Alternatives. Today there are a number of alternatives including both injectables and oral tablets that may be used in place of coumadin/warfarin.