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mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Antihistamínicos</topic></authority><related type="narrower"><topic>Cimetidina</topic></related><related type="narrower"><topic>Famotidina</topic></related><related type="narrower"><topic>Pantoprazol</topic></related><related type="other"><topic>Histamina</topic></related><related type="other"><topic>Alergia</topic></related><related type="broader"><topic>Medicamentos</topic></related><variant type="other"><topic>Antagonistas de la histamina</topic></variant><variant type="other"><topic>Antagonistas histaminérgicos</topic></variant><variant type="other"><topic>Histamina-Antagonistas</topic></variant></mads>