I know there are new studies with using mice on certain strains of probiotics that alleviated some autism symptoms as well as social symptoms. I've looked in Walgreens, Walmart, etc... finally today I found one in Target with one of the strains. I started my son on it tonight. I thought that with any gi issues probiotics are good, so couldn't hurt.
My Dr. told us to use Floragen probiotics since my son takes prescription medication for ADHD, not for gi issues. It is not available on the shelf b/c it has to be refrigerated. It is usually kept in the pharmacy. I get mine through Walgreen's and they will order it for you if they don't keep it in stock.