Returns the default RxNorm term types used by rxref when identifying
drug products.
Value
A character vector of RxNorm term type abbreviations.
Details
The default set is intentionally focused on product-level concepts:
semantic clinical drugs, semantic branded drugs, generic packs, and
branded packs.
Examples
default_product_ttys()
#> [1] "SCD" "SBD" "GPCK" "BPCK"
