The navigation bar also proposes a more direct access, i.e., not implying the selection of symptom, to molecule and drug information. This approach enables us to inform the general public on non-self-medication molecules and drugs by proposing to access information on all drugs and molecules obtained on our selected LOD data sets. Up to now, we do not provide ratings for these molecules. This is mainly motivated by the fact that they are generally out of the scope of self-medication.
Finally, to provide useful services in the context of self-medication, we propose the end-user to locate the pharmacies surrounding her current or a defined location (Fig. 3). Given a position, this tool suggests the ten closest pharmacies and provides driving/walking directives. We have not found on LOD a repository of addresses for health actors, e.g., hospitals, doctors, and pharmacies. Hence, we harvested the Web for pharmacy coordinates in France and the US. Currently, we have gathered more than 18,000 of them. At the moment, this information is stored in a relational database, i.e., MySQL, since it does not follow a graph representation and enables fast data retrieval due to indexes created on the geolocation coordinates.