Doctors who prescribe the medicine do not know how much the medicine is that they prescribe nor do they know what the copay would be. It is crazy to think that Dr's magically know the current going price of every drug. Dr's prescribe the medicine they think will work best for their patient, not based on cost or co-pays. A lot of people have the option of mail order, which if they order 90 days worth at a time, it is even cheaper, sometimes, the Dr can write for double strength and the patient cuts it in half because it's cheaper. Doctors specialize in treatment. Pharmacy techs can often help you find the cheapest way to bill insurance for the medicine, but you have to ask. Unless the Dr takes the exact same medicine, the exact same strength, from the exact same pharmacy, and has the exact same insurance as the patient they would have no idea what the medicine costs the patient. I have great insuarance. One of my prescriptions is $1300 a month but my co-pay is only $15.00.