For difficult to treat conditions like Autism, physicians will often start to prescribe new classes of drugs that typically are used for other conditions, if studies are published that show benefits for the newer condition. Physicians are allowed to prescribe a medicine to treat a condition for which it has not been approved by the FDA.  This is called “off-label” use of drugs. A class of anti-depressants known as SRI’s (serotonin uptake inhibitors) has been used by many physicians to...