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Borreliabacterien zijn verantwoordelijk voor de ziekte van Lyme of Lyme-borreliose. De mens wordt besmet via een beet van een geinfecteerde teek. De meeste besmettingen komen voort na beten van nymfen (

Bestaat er zoiets als een chronische vorm van de ziekte van Lyme en wat betekent dit dan? Deze controverse wordt in de media soms op een minder wetenschappelijke manier benaderd met sensationele getuigenissen. Het concept ‘chronische ziekte van Lyme’ is niet duidelijk gedefinieerd en wordt door sommigen aangepakt met langdurige antibioticakuren, vaak met verschillende antibiotica. Voor een dergelijke aanpak is er geen wetenschappelijke onderbouwing, maar de soms zeer ernstige ongewenste effecten zijn wel bekend.

Purpose The aim is to describe the process, principles and results of the International Nonproprietary Name (INN) prescribing project in Belgium. The purpose of this project was to operationalize electronic INN prescribing for outpatient care in daily medical practice and to develop a factual database which can be used in electronic INN prescribing applications. Methods The operationalization process consisted of three phases: (1) expert consultation, (2) review by regulatory authorities and (3) test phase with stakeholders and end-users. Results The INN prescribing project resulted into (1) operational rules for electronic INN prescribing and (2) a reference database to be implemented in commercial medical software. The operational rules for electronic INN prescribing define valid INN groups as sets of equivalent medicinal products, described by three elements: the therapeutic moiety (the active part of the therapeutic ingredient) or combination of therapeutic moieties, the strength (with standardized denominators), and the method of administration (with simplified but standardized options). The operational rules also define two categories of exemptions for INN prescribing: INN groups where the first choice of treatment should be continued throughout the therapy period (NO SWITCH) and medicinal product groups not suitable for INN prescribing (NO INN). The reference database is the result of the virtual classification of the Belgian therapeutic arsenal into INN groups, according to the operational rules. Conclusions Defining the operational rules for INN prescribing for and with different stakeholders was a difficult yet feasible assignment. The INN prescribing project resulted into explicit operational rules and a reference database. The Belgian experience may provide important information for other countries planning to operationalize or refine electronic INN prescribing. It can also be used for a thorough evaluation of the impact of the new concept of INN prescribing on daily practice and on medical education.