Questions about preventive genetics

Since the person has a higher rate of breaking down the drug diazepam, 135%, how come the adverse reaction is marked to be common? Why the effect is likely higher, isn’t it supposed to be lower?

What is Prodrug?

What is URM, EM, IM, PM stands for?

With the change of nutrition and lifestyle, or even environment, how do we adjust the amount of different pellets to fit the changes? Is it necessary to regularly do blood check-up to adjust the amount?

For how many illnesses can a baby be tested?