But in practice, this may not make sense economically.
In theory, of course, you'll want to ship the most effective cures you can while ironing out negative symptoms such as constipation. To unlock or cancel out these traits, you need to feed the ingredient through various devices that alter its concentration, or combine it with another substance, before ferrying the results to the export hopper. All of them have a number of possible effects, good and bad. Each ingredient must be discovered by hiring explorers to scour the unseen world beyond your factory, then imported for a fee.