Honestly, it is not normal to lose weight like this unless you are sick. Another reason that may justify losing 44 pounds is when you are on an extreme weight loss program. Your case is strange, but it is good that you have seen the doctor. I think your body needs a higher intake of carbs, proteins, and fats because these are the macronutrients which give energy to the body.
Protein is essential because it builds and preserves muscle mass. As for the drugs, I think you should just keep to what your doctor recommends you.