Duplixent and Medicare

I’m reaching that age after five years of having success with duplixent on my regular medical insurance that I can’t get answers about Medicare supplement drug plans that might help me pay for it. I called Duplixent they couldn’t help me. I spoke to my doctor they couldn’t help me. I don’t know if anyone out there has Medicare as a primary and is found a drug plan that will pay for some of the duplex sentright now I’m on duplex at my way so thank God I do not have a co-pay, but if there is someone who found a plan that covers it under Medicare I would be very appreciative right now I live in New York.