English to German Medical Medical: Pharmaceuticals This is about a drug intended to keep certain substance in the blood below a specific level

The translation that makes the most sense to me is "Aufrechterhaltungs- oder Präventivprotokoll", but I don't find any confirmation of that in any of the online dictionaries. The term maintenance refers to keeping uric acid levels below a certain threshold. Please note that this is not a technical translation and "Wartungsprotokoll" is therefore most likely not the right term. Here's the whole sentence for more context:

The maintenance or preventive protocol may comprise reduced dosages and/or less frequent administration of a compound having a structure of the present invention, or a combination thereof, as necessary or desired to maintain normal or sub-normal uric acid levels in blood or serum or the whole body.

Thank you!