Arnold Kling recently asked:

How might hospitals substitute capital or other forms of labor for nurses?

Not 'might', but do:

Integrated Healthcare Systems, Inc. offers simple, affordable and reliable pharmacy automation. IHS solutions include inventory management software combined with carousel technology, medication packaging and barcode labeling systems. IHS helps you to track all medications throughout your entire healthcare system. Reduce costs, increases productivity, and improves accuracy and patient safety with IHS solutions.