Where is an area pharmacy that has focalin ER in stock?

My kid is almost out of Focalin EX and every pharmacy we have called around us (Richmond / Rosenberg) is out of stock and does not know of any other pharmacy that has it in a 30 mile radius.

Does anyone here know of a Houston area pharmacy that has Focalin or the generic equivalent in stock? We are looking for the 20 mg dose if possible.