Who needs molar units for drugs?

The standardisation of units for drug concentration measurement in clinical medicine is an urgent necessity. The obvious choice is mass units based on the litre. A change to molar units for drug concentrations would make no sense unless drugs were also prescribed in moles, which would cause disruption and inconvenience. There would be considerable danger to patients and the change would be expensive. Most importantly, molar units for drugs will not benefit doctors or their patients. Mass units should be retained and proposals for the adoption of molar units should be abandoned.