| Term Type | Expanded Form | Count |
| SY | Designated synonym | 63502 |
| SCD | Semantic Clinical Drug | 38428 |
| PSN | Prescribable Names | 35792 |
| SCDC | Semantic Drug Component | 27500 |
| TMSY | Tall Man synonym | 26621 |
| SBD | Semantic branded drug | 22696 |
| SBDG | Semantic branded drug group | 19522 |
| SBDC | Semantic Branded Drug Component | 18620 |
| SCDG | Semantic clinical drug group | 16051 |
| SCDF | Semantic clinical drug and form | 14771 |
| IN | Name for an ingredient | 14171 |
| SBDF | Semantic branded drug and form | 14034 |
| BN | Fully-specified drug brand name that can not be prescribed | 11431 |
| SBDFP | Semantic branded drug and form with precise ingredient as basis of strength | 4887 |
| SCDGP | Semantic clinical drug group with precise ingredient as basis of strength | 4598 |
| SCDFP | Semantic clinical drug and form with precise ingredient as basis of strength | 4262 |
| MIN | name for a multi-ingredient | 3784 |
| PIN | Name from a precise ingredient | 3423 |
| BPCK | Branded Drug Delivery Device | 917 |
| GPCK | Generic Drug Delivery Device | 826 |
| DF | Dose Form | 186 |
| DFG | Dose Form Group | 46 |
| ET | Entry term | 11 |
| Attribute Type | Expanded Form | Count |
| RXCUI | RxNorm concept identifier for the atom this is connected to | 1148973 |
| RXAUI | RxNorm atom identifier for the atom it is connected to | 1148973 |
| NDC | National Drug Code corresponding to a clinical drug (e.g. 000023082503) | 241727 |
| RXN_OBSOLETED | Date the RxNorm atom became obsolete | 86520 |
| RXN_BOSS_FROM | RXN Boss From | 67118 |
| RXN_AM | RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value | 67118 |
| RXN_AI | RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value | 67118 |
| RXN_AVAILABLE_STRENGTH | Available drug strengths listed in the order of ingredients from the drug | 51387 |
| RXTERM_FORM | The RxTerm dose form name for this drug | 47556 |
| RXN_STRENGTH | Strength plus unit of SCDC | 27500 |
| RXN_HUMAN_DRUG | Drug available for use in Humans | 23200 |
| RXN_BOSS_STRENGTH_NUM_UNIT | RXN Boss Strength Num Unit | 15545 |
| RXN_BOSS_STRENGTH_DENOM_VALUE | RXN Boss Strength Denom Value | 15545 |
| RXN_BOSS_STRENGTH_DENOM_UNIT | RXN Boss Strength Denom Unit | 15545 |
| RXN_BOSS_STRENGTH_NUM_VALUE | RXN Boss Strength Num Value | 15545 |
| RXN_BN_CARDINALITY | Cardinality of RxNorm Brand Name Atom | 11421 |
| AMBIGUITY_FLAG | Source atom ambiguity flag | 8734 |
| RXN_ACTIVATED | Date the RxNorm atom was reactivated | 6389 |
| RXN_QUANTITY | Normal Form quantity factor | 6306 |
| RXN_IN_EXPRESSED_FLAG | Strength Expressed As Precise Flag | 4247 |
| RXN_VET_DRUG | Drug available for use in animals | 1870 |
| RXN_QUALITATIVE_DISTINCTION | RXN Qualitative Distinction | 339 |
| ORIG_SOURCE | Original source associated with this string | 135 |
| ORIG_CODE | Original code associated with this string | 135 |
| Relation Name/Additional Label | Expanded Form | Count |
| SY/ | source asserted synonymy./Empty relationship attribute | 1137958 |
| RB/inverse_isa | has a broader relationship/Inverse is a | 229192 |
| RN/isa | has a narrower relationship/Is a | 229192 |
| RO/has_ingredient | has relationship other than synonymous, narrower, or broader/Has ingredient | 153432 |
| RO/ingredient_of | has relationship other than synonymous, narrower, or broader/Ingredient of | 153432 |
| RB/has_tradename | has a broader relationship/Has tradename | 122421 |
| RN/tradename_of | has a narrower relationship/Tradename of | 122421 |
| RO/constitutes | has relationship other than synonymous, narrower, or broader/Constitutes | 111840 |
| RO/consists_of | has relationship other than synonymous, narrower, or broader/Consists of | 111840 |
| RO/has_dose_form | has relationship other than synonymous, narrower, or broader/Has dose form | 91672 |
| RO/dose_form_of | has relationship other than synonymous, narrower, or broader/Dose form of | 91672 |
| RO/doseformgroup_of | has relationship other than synonymous, narrower, or broader/Dose form group of | 35573 |
| RO/has_doseformgroup | has relationship other than synonymous, narrower, or broader/Has dose form group | 35573 |
| RB/has_form | has a broader relationship/Has form | 17170 |
| RN/form_of | has a narrower relationship/Form of | 17170 |
| RO/has_ingredients | has relationship other than synonymous, narrower, or broader/Has ingredients | 11602 |
| RO/ingredients_of | has relationship other than synonymous, narrower, or broader/Ingredients of | 11602 |
| RO/has_part | has relationship other than synonymous, narrower, or broader/Has part | 10404 |
| RO/part_of | has relationship other than synonymous, narrower, or broader/Part of | 10404 |
| RO/has_boss | has relationship other than synonymous, narrower, or broader/Has basis of strength substance | 8471 |
| RO/boss_of | has relationship other than synonymous, narrower, or broader/Basis of strength substance of | 8471 |
| RB/precise_ingredient_of | has a broader relationship/Precise ingredient of | 6552 |
| RN/has_precise_ingredient | has a narrower relationship/Has precise ingredient | 6552 |
| RO/includes | has relationship other than synonymous, narrower, or broader/includes | 6254 |
| RO/included_in | has relationship other than synonymous, narrower, or broader/included_in | 6254 |
| RN/quantified_form_of | has a narrower relationship/Quantified form of | 6072 |
| RB/has_quantified_form | has a broader relationship/Has quantified form | 6072 |
| RO/has_precise_ingredient | has relationship other than synonymous, narrower, or broader/Has precise ingredient | 4850 |
| RO/precise_ingredient_of | has relationship other than synonymous, narrower, or broader/Precise ingredient of | 4850 |
| RN/contains | has a narrower relationship/Contains | 3028 |
| RB/contained_in | has a broader relationship/Contained in | 3028 |
| RO/reformulated_to | has relationship other than synonymous, narrower, or broader/Reformulated to | 54 |
| RO/reformulation_of | has relationship other than synonymous, narrower, or broader/Reformulation of | 54 |
