The contraceptive patch (Ortho Evra) is a very thin, beige, smooth patch with adhesive on one side that measure 1 3/4 inches on all four sides. It is a highly effective, weekly hormonal birth control patch that is worn on the skin to prevent pregnancy. The patch combines the efficacy of the pill with once-a-week dosing.
Perfect use failure rate in first year: 1%
Typical use failure rate in first year: 5-8%