...
        <PackageRestriction>
            <PackageNumber source="Local">251211</PackageNumber>
            <PackageQuantity>1</PackageQuantity>
            <Drug>
               <ATC>N05CH01</ATC>
               <DetailedDrugText>Melatonin tabletter</DetailedDrugText>
            </Drug>
        </PackageRestriction>
        ...