is a drug rightly used for treatment of hyperthyroidism
. Weight gain has been reported as one of the possible side effects. Thyroid hormones control metabolic rate and thus a decrease in thyroid hormones will imply a decrease in metabolic rate and thus more reserves stored as fats. You do not have to stop carbimazole unless your doctor tells you so; thus to deal with your weight gain, you only have to consider a change in diet. You need to eat more of fruits and vegetables, reduced consumption of food rich in carbohydrate
, reduce fatty foods etc. You should see your doctor so that he can advice on diet based on the food stuff in your area. However, a better indicator of weight disorder is the body mass index( weight divided by the square of your height in metres). Ideally it should be below 25.