You have to build a research room before you can set your research priorities, and you need at least one doctor with a research qualification to run it. On early levels there will be only one or two rooms to research, later on there will be up to 5 or 6. A priority placed here will allow you to cure more patients that have been fully diagnosed, without having to turn them away in the early stages of the level. When you aren't sure what disease a patient has then they will have to go to another diagnosis room. On early levels there will be one or two rooms to research, later there will be up to 5 or 6 items to be researched.
Drug research improves the effectiveness of a pharmacy drug cure.
Very important on later levels where you will kill more than one patient because of low effectiveness. Each improvement is in a small increment for an individual drug. Specialization is the only way of directing research to look at one specific cure and improve it. Useful when you have a particular machine that has a low initial strength, or a cure you want to obtain in a hurry. Top of page Where, why, and who Building a research room at the start of the level is probably the best thing you can do.