I regularly take bupropion HCl x 150 mg tab cipl. When I refilled my script the new bottle says bupropion 75 mg tab spot. And the pills are yellow instead of white. I asked him about this immediately and hebsaid that there was a change in the medicine but I don't feel right about taking it! Should I wait until they are open and take both old bottle and new back to them and show the difference or should I contact my doctor?