Have you tried contacting the manufacturer? They usually have sliding pay scales based on your income level. I did this when I was prescribed GoCuvri. It was $1500/month ( my insurance won't pay for it ) but I got it for $0/mnth. They send it to you monthly and you have to requalify yearly, I am on my 2nd year.

I think you had better ask yr neurologist John, or your GP . you will not Receive the therapeutic dose you require if you halve them.. what a shame , I’ve just returned Azilect to the pharmacist to destroy as I’ve changed to Xadago.
Take care John , and I hope you find a solution.
Lyney