![[Experimental]](figures/lifecycle-experimental.svg)
get_classes() returns RxClass assertions for RxNorm concepts or drug names.
These include drug-class relationships from sources such as ATC, FDASPL,
DAILYMED, MEDRT, SNOMEDCT, and VA. Depending on the source and relationship,
returned assertions may represent pharmacologic classes, chemical structures,
mechanisms of action, physiologic effects, indications, contraindications,
VA classes, ATC classes, or SNOMED CT dispositions/structures.
Because different sources use different classification logic, this function preserves class type, relationship, and relationship source rather than collapsing results into a single class label.
Usage
get_classes(
x,
by = c("rxcui", "name"),
rela_source = NULL,
relas = NULL,
class_types = NULL,
keep_input = TRUE,
show_progress = interactive()
)Arguments
- x
Character vector of RxCUIs or drug names.
- by
One of
"rxcui"or"name".- rela_source
Optional RxClass relationship source filter, such as
"ATC","ATCPROD","DAILYMED","FDASPL","MEDRT","SNOMEDCT", or"VA". May be a character vector; values are queried separately.- relas
Optional relationship filter. Examples include
"has_EPC","has_MoA","has_PE","may_treat","ci_with","has_chemical_structure", and others supported by RxClass.- class_types
Optional filter on returned class types, such as
"EPC","MOA","PE","DISEASE","CHEM","VA", or"ATC1-4".- keep_input
Logical; if
TRUE, includes the original input value.- show_progress
Logical. Show a progress bar in interactive sessions. Progress is shown only when at least 5 inputs are supplied.