I have been on xanax .5 twice a day for about a year. The doctor just upped my dose for .5 three times a day. I still have a refill for the .5 twice a day left (3 month supply). There was some mix up at the pharmacy where I took the new prescription too and my insurance said it was too early even though it was a change in dosage. So my pharmacist went a head and filled it and I paid cash. My old refill is through a different pharmacy and I would still like to get it refilled. Can I still do this? It's a different pharmacy from the new script and they did not bill my insurance. So the refill is at a totally different chain and would be filled through insurance. Will I be able to still get the refill? I live in Michigan and don't know the laws on xanax prescriptions. Thanks for any input.