<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, we have a daughter who is 15 years old 16 this year with a mild autism. She has actually lost a lot of her autistic traits over the years with vitamin therapy and diet GF dairy free. But, she has mild-moderate learning problems, difficulty focussing on reading etc and wondered if there is any prescription with not too many side effects that we can give her? She also has mild pyroluria we give her B6, actually multi B and zinc etc, with other vitamins to correct this but it is a disorder ? that becomes worse when her hormones become more problematic when she is pre-menstral and during her period and her repetition, perseveration, lack of focus on anything is really difficult for her, but especially for us who have to deal with her. The odd thing is that when she is out or when other people are around, she is perfectly behaved and the tension that is building up in her at these menstral time comes out in an excessive stream of the same, same, same conversation which tends to drive everyone mad around her. I realise she is also a teenager and lots of this is normal, but the perseveration is very difficult with it we have 2 other grown up kids, no problems etc Would love some advice. cheers, Suzie  <response>: OK, lets start with Autism : the inability to focus during study is a major problem in teenagers with mild-moderate autism, some of these difficulties are manageable with the use of some psychostimulants with a lot of effort in study during the time of action of the Chat Doctor. The starting dose is 20 mg and can be increased weakly by 10 mg to achieve its full potential, max dose is 60 .the second question is related to polyuria, which is must be investigated, although in people who take multivitamins Its common to have some polyurethane the investigations I suggest are : urine specific gravity, urine spot for sodium and creatinine, urine osmolality, serum sodium and osmolality. Fasting blood sugar .you should always look for psychogenic polydipsia which is consuming huge amount of water that results in polyuria, its common in child 