Using different pharmacies rarely works anymore either. When you get a script filled, let's say for 30 Lexapro, your insurance instantly approves the RX as some insurance drug policies make you try a lesser expensive med that does that same thing or your doc might write you a 90 day supply for something but your insurance will only allow you 30 at a time, as in Ambien.
SO if go to pharmacy A to get 30 days of Lexapro, your insurance has approved the payment amt, you do the co pay. Next day, next wk, you go to Doc B to score more Lexapro since he doesnt know Dr A wrote you an Rx. Happy to score another 30 day script for Lexapro, you go to a different pharmacy, but guess what, they are putting your insurance thru & your insurance will tell them they will not pay for it as you just had 30 filled last wk at Pharmacy A. I can promise you within 5 minutes every single place that fills scripts has been notified you are trying to fill a questionable script & they are not to fill it without contacting the Dr.