Answer
Each Evra patch releases an average of 203 micrograms of norelgestromin and 33.9 micrograms of ethinylestradiol per 24 hours.
Sources for this answer
- EVRA 203 micrograms/24 hours + 33.9 micrograms/24 hours transdermal patchGedeon Richter (UK) Ltd · emc · SmPC §2 Qualitative and quantitative composition · Version 3Document updated
Sources checked