I don't think this is preparation. Preparation batches are made into drugs with certain specifications, concentrations and dosage forms according to the prescriptions contained in Pharmacopoeia and ministerial drug standards. According to the above definition, the medicine prescribed by your clinic should belong to the category of prescription, that is, according to the doctor's prescription, it is temporarily made into a finished product in a certain dosage form for patients' direct use, with a clear object, dosage and usage.

But the authoritative statement is best found in the Drug Administration Law.