GW,
First let me say that I am truly sorry for the trauma of your having to identify your wife.
In Oz, the 28 days rule says that you must be stable on your medication and dosage for 28 days. It took me about 6 weeks to first find the right dose, then 28 days to prove to everyone, especially myself, that I was stable. I weaned off the meds after about 18 months.