Unless you change your diet drastically from week to week, adjusting your warfarin level over a monthly period shouldn't be too difficult. The warfarin dosage should be adjusted to your normal eating habits over this period of time. You should not have to alter your diet to achieve the proper PT/INR level.
If you are taking warfarin for Afib, you may switch to one of the alternative blood thinners. Some substitute blood thinners are known to cause internal bleeding problems on some patients, so make sure you are checked frequently for problems till it is determined you are not adversely affected by them.
If you have a mechanical heart valve, Xarelto and other substitute blood thinners CANNOT be used in place of warfarin.
