The device itself probably cost $50 to manufacture, but it's a medical device which is strictly regulated. You're also paying for the additional quality control, the regulatory approval, the post-market surveillance studies etc. There is a lot of legally required overhead when you do business in regulated industries. Some of it necessary, other things maybe not so much. It will be interesting to see if DOGE/Musk/Trump will actually change any of this.
Agreed about the absurdity of the Tylenol though.