Don't know if you have a Sam's club in your area. Their prices are less expensive. My DH's meds through his insurance company is 10 bucks a month (copay) at Sam's 3 months of the very same medicine, same manufacture is 8 bucks. UMMMMM 30 bucks or 8 bucks??
Also, have brother talk doc about different meds. The meds that have been on the market longer are cheaper and a lot of times do the same job as the newer ones. The docs just like to use the newer ones because they are the ones they are hearing about the most. They have no idea how much they actually cost, so you need to talk with the pharmacist, they are the ones that know medicine.
Good luck!