Though you may meet the same resistance with your wife's doctor, docs will sometimes have samples that they can give out. While not a 30 day supply, it might give you some cushion. My DGF has asked for and received them because her insurance company would not immediately refill a prescription.

Another thought is many insurance companies offer through-the-mail prescriptions for 90 days. This supposedly saves everyone money. The insurance company pays less for the drugs and you pay the same co-pay but only once every 90 days. At least this way, your average supply would be around 45 days instead of 15.