Cirohsis and heart disease, taking blood thinner for heart...can I get my wisdom tooth (extreme pain)extracted and what precautions do I take?

Yes. co-ordinate with your doctor and or hematologistwhen your blood thinner is going to be stopped and whether you will need short term anticougulant.
Med Q General. You haves complex history so discuss with all your physicians ... Simple medicines such as paracetamol or Naproxen may interact with your prescription medications and your medical conditions.