Drugs used to treat obesity have a lot of side effect. Hence, they are restricted
for those who are morbidly obese. In these
people the hazards of being morbidly obese outweigh the hazards of taking the drug.
If you want to lose weight, common causes of weight gain like overeating, lack of exercise, diabetes, hypothyroidism have to be ruled out in your case. You must then look for other causes. One is water retention due to low serum protein.