Can I Take Apidexin Along With Synthroid?

I AM 50 IN JULY I AM 5 3 , AND TAKE 175MG OF SYNTHROID EACH DAY FOR THE LAST 6 YEARS, I WAS 145 POUNDS, THEN I JUMPED UP TO 186 IN NO TIME, I DO WORK OUT MORE NOW, AND HAVE LOST 10 POUNDS BUT I AM ALSO TAKING PHENTERMINE FOR TWO MOUNTHS ONLY, PERSCRIBED BY MY DOCTOR. NO REFILLS. SO MY QUESTION IS CAN I TAKE APIDEXIN 1111MG SAFELY AFTER I FINISH MY PHENTERMINE..WITH MY HYPOTHYROID MEDICINE SYNTHROID..AND CONTINUE TO LOSE WEIGHT, WITHOUT HELP OF SOME SORT I FIND IT REALLY HARD TO LOSE THE WEIGHT EVEN WITH EXCERCISE,