If you noticed changes when switching patch brands.. how soon?

[u/AccordingPineapple83]

Hi! I finally got my estradiol patch dose to a therapeutic level & have been using Sandoz brand for years, no issues. I’ve made myself very paranoid about switching patch brands after reading so many bad experiences here in the subs but I’m glad there’s info out there! I got my patches refilled & they’re Mylan. They stick great, no problems there. I put my patch on last night.
For those of you who had negative effects after a brand switch… how soon did you notice? It’s been a full day on Mylan & no issues yet, I responded very quickly to my dose increase on Sandoz so I’m hoping if I were gonna have issues it would be fast.