So, your question about cost must be answered with an understanding of the drug involved, hard to make, hard to keep in a usable form.
Also, your comments should be balanced with the fact that other drugs are also very expensive. Shelf life can have a great deal to do with expense.
Product liability costs can also be huge.
Balance those costs against the benefit to the patients.
And the benefits to the claims payers, government and insurance companies alike.
And it is just pure coincidence that there is not much cost difference between the new pill and the old treatment?