Heprin vs warfarin??

Iam 43 and have been diagnosed with  lupus for over 20 years now. I have antiphosolipid syndrome and have been on warfarin for 15 years. I take 28 mg a day to maintain my inr  (3~4) which is never very stable. Just about to start fragman injections 2 daily as a sustitute for warfarin. I tried fragmin years ago when pregnant but still suffered TIAs and miscarrages, specialist said fragmin is now more effective.. Does anybody else have problems with warfain and have used long term injections instead??  Have they had any side affects?? I also have storage pool disease which complicates my bleeding time.  

[BeautifulMistake2010]

OMG! Please please please I cannot stress this enough... BE CAREFUL!!!!! My sister in law has a very rare blood disorder and  her warfarin level was too high and she had just had her blood work done.. Well the Dr. wanted her to go on fragmin injectionson top of her warfarin and it nearly killed her! Luckily my sister in law called her nurse and the nurse told her no!! that she was to not take any medication at all and re test in 3 days.