| default_product_ttys | Default RxNorm product term types |
| exclude_products_with_ingredients | Exclude products containing specified ingredients |
| extended_product_ttys | Extended RxNorm product term types |
| extended_ttys | Extended RxNorm term types |
| filter_products_by_route | Filter RxNorm product concepts by route of administration. |
| find_classes | Find RxClass drug classes by class name |
| find_ingredients | Resolve a free-text drug name to ingredient CUIs (IN/PIN) |
| get_atc | Get ATC classes for RxNorm drugs |
| get_atcprod | Get ATC product-level classes for RxNorm drugs |
| get_chemical_structure | Get chemical-structure assertions |
| get_classes | Get RxClass assertions for RxNorm drugs |
| get_class_members | Get RxNorm members of an RxClass class |
| get_clinical_attributes | Clinical attributes from the concept (SCD/SBD) or related SCD/SBD |
| get_contraindications | Get contraindication assertions from MED-RT |
| get_drug_classes | Get class-like RxClass assertions for RxNorm drugs |
| get_epc | Get FDA/SPL established pharmacologic classes |
| get_may_treat | Get indication/treatment assertions from MED-RT |
| get_medrt | Get MED-RT assertions for RxNorm drugs |
| get_medrt_moa | Get MED-RT mechanism-of-action assertions |
| get_medrt_pe | Get MED-RT physiologic-effect assertions |
| get_properties | Get core RxNorm properties for one or more RxCUIs |
| get_va | Get VA drug classes for RxNorm drugs |
| ingredients_for_rxcui | Get ingredient concepts for RxCUIs |
| map_ndc_to_rxcui | Map NDCs to RxCUIs |
| map_rxcui_to_ndc | Map RxCUIs to NDCs |
| map_to | Map between NDCs and RxCUIs |
| ndc_status | Get RxNav status for NDCs |
| products_for_ingredients | Expand ingredient CUIs to product CUIs that truly contain the ingredient |
| product_ttys | RxNorm product term type sets |
| resolve | Resolve free text, RxCUI, or NDC to RxCUI and preferred name |
| rxclass_relas | Get RxClass relationship types |
| rxclass_relationships | Summarize RxClass relationship types for drugs |
| rxclass_rela_sources | Get RxClass relationship sources |
| rxref_conf | Configure rxref |
| search_drug | Search free-text drug name and return product CUIs and/or NDCs |
| tty_catalogue | Catalogue of RxNorm TTY (Term Types) |