I am a nurse and have worked in the health insurance field for 2 decades, always trying to be a patient advocate. I advise everyone to go on the drug manufacturer website and check their patient assistance program. Many have a $0 co-pay coupon, with no financial info needed. Some are income based. Do your own research, often it will be very different than what the doctor's office will tell you as the drug companies have incentives for the physicians no to tell patients when there is a $0 or minimal co-pay available. Where there is a $0 co-pay you do not use our insurance, you simply print the coupon or take a picture of it with your phone and bring to the pharmacy. Also ask for home infusion it could be cheaper still. Another resource is a company called "Prescription Hope" it is income based, however worth looking into, if you qualify all prescriptions are $50/month supply. Again you do not use your insurance. Lastly, before you fill a prescription get the Mobile App of go the the website of GoodRx when you enter the drug name, it will give you a list of pharmacies and the cost of the drug, the difference between stores can be significant. Good Luck out there!