My daughter is nearly 17 and had her first siezure 8 months ago. After an mri it was discoved that she has a 1cm brain cyst. She was prescibed tegrato 400 and takes it twice daily. Since taking this medication she seems to have memory loss under stressful situations, mainly exams and her grades have dropped by 30 percent. She was always a good student and studies a lot. Nothing else explains the change and her understanding during lesson time is great according to her teachers. Is there an alternative to tegratol which does not have these side effects, or do all anti epileptic drugs cause these problems?She has not had another siezure since taking tegratol and I dont want to risk causing one by asking her doctor to change the medication. Also I have read that tegratol affects calcium level in the body and also thyoroid. Underactive thyoroid and osteoporosis run in our family so should we change medication regardless?