Diagnosed with cirrhosis in 2009 taking lactulose & Lasix (furosemide) what is my prognosis without liver transplant?

Cirrhosis. You should be on spironolactone than lasix (furosemide). Talk to your doctor about this. The prognosis depends on each patient. Some people live long without requiring liver transplant but some people need it sooner.
Many variables. It depends on the cause of the cirrhosis (alcohol, hepatitis c, etc.), the degree of scarring and degree of inflammation (all on biopsy), serum Albumin concentration and if blood clotting tests are normal or abnormal. The cause of the cirrhosis and degree of synthetic function (albumin and clotting factors) are the most important variables. Have a long talk with your gastroenterologist.