Question: how long does the birth control patch last after you take it off?
Answer: 1 patch has enough hormones in it to last for 1 week (7 days). So you need to change your patch once every week. Be sure to put on a new patch on the same day every week — this will be your “patch change day.” If you start on a Monday, then Mondays are always the day you take off your old patch and put on a new one.