Hi Robot
I was also on Prempac C (1.25mg) until it was discontinued, so will offer my experience from what I have tried and currently on.
I started on Indivina 2mg/5mg, I have just given up on those after 3/4 months on them, they didn't really help at all but thought I would give it a healthy try.
Went back to the doctors and because I haven't had a period in over 15months now, I was given (by a locum) Fem 7 conti patches 50mcg, however after stopping the pills and starting the patches, I could feel myself going on an even slippier slope, so went back again yesterday, to my normal doctor and was given Fem 7 Conti patches 100mcg and Provera 2.5mg.
The does of Prempac I was on was a higher dose and so the dosage of the patches and provera I have now been given are the correct dosage. I have only got them today, so can't tell you yet, but can update you next week.
Squeezy x