Thanks for writing in.
Although Montair and Metaspray do not normally cause a loss of appetite, they can cause heart burn and abdominal pain
. I would suggest that you give your child small, frequent meals and make her eat early at night. Also, avoid spicy and oily food. Further, give her the food she likes the most, regularize her meal timings, encourage her to exercise and eat your meals together. If she does not become ok, take her to a physician so that a possible worm infestation can be ruled out.
Hope this helps