Convert Antipsychotic Doses to Chlorpromazine Equivalents
Combine 2 keys with base key taking precedence
Checks whether antipsychotic names are in the key
Check whether a conversion key is the expected format
Calculates equivalent doses
Calculates chlorpromazine-equivalent doses
Modify the names in a conversion key to only include the first word
As different antipsychotic medications have different potencies, the doses of different medications cannot be directly compared. Various strategies are used to convert doses into a common reference so that comparison is meaningful. Chlorpromazine (CPZ) has historically been used as a reference medication into which other antipsychotic doses can be converted, as "chlorpromazine-equivalent doses". Using conversion keys generated from widely-cited scientific papers, e.g. Gardner et. al 2010 <doi:10.1176/appi.ajp.2009.09060802> and Leucht et al. 2016 <doi:10.1093/schbul/sbv167>, antipsychotic doses are converted to CPZ (or any specified antipsychotic) equivalents. The use of the package is described in the included vignette. Not for clinical use.
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