EVRA contains two types of sex hormones, a progestogen called norelgestromin and an estrogen called ethinylestradiol. It is used to prevent pregnancy. EVRA patch should be applied once a week for 3 weeks and stop for 1 week. Your menses should begin during the 7-day patch free period. Even if your menses is still ongoing, subsequent pack is to be started after the 7-day patch free period has elapsed.
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