I was trying to search information about Advil so I tried two ways
Search by drug name: https://api.fda.gov/drug/event.json?search=patient.drug.openfda.brand_name:advil
Search by ndc code: https://api.fda.gov/drug/ndc.json?search=product_ndc:0573-0134
In second link output I could get lot of information about the drug where as first link doesn't provide much information about the drug. Example fields found in second link but missing in first link dosage_form active_ingredients many more fields
Is it expected to work like that? If so, would you help out me with your reasoning.