Hi, thanks for using healthcare magic It can sometimes be difficult to lose weight but it is very good that you are trying. Exercise is important, it will help with general fitness, heart health and prevent the weight loss from returning. In terms of weight loss however,it is easier to lose weight by modification of diet than by exercise because changing the diet can produce a greater calorie deficit. Calorie deficit is the difference between the energy that goes into your body (food and drink) and the energy that goes out (activity).This means that for weight loss you need to alter your diet, exercise alone even with the oxy elite would not be effective. They are different diet programs, low fat/low calorie and low carb. You can choose which best suits you, the low carb will cause faster initial loss. Tenormin is used in heart disease and in high blood pressure control, it would be best to speak to your doctor before discontinuing any medication. I hope this helps