The patch is about 4.5cm thin, directly attached to the skin of the buttocks, abdomen, upper back or upper arm. The patch consists of two synthetic hormones, progestin (norelgestromin) and estrogen (ethinyl estradiol). When placed on the skin, the drug will penetrate the skin into the bloodstream and promote the effect of contraception by preventing the fall. In addition, patches also make the cervical mucus thick enough to make the sperm difficult to meet the egg so it can not conceive. When using this patch, you need to use the menstrual cycle. Specifically, one day after the business, paste the patch on the skin and leave it for a week. On that next week, you peel off the old patch and paste a new one. New patches can be placed elsewhere on the body. During week 4, no new patches and menstruation occur. The next week, you repeat this process.
However, you need to pay attention to ensure effective contraception, the first time you use the patch, you have to use another method of contraception for 7 days to prevent pregnancy. If the next patches are patched and removed at the right time, no additional contraceptives are needed. Also, do not peel or change the position of the patch when it is glued to the skin as it may make the patch sticky. Do not use adhesive tape to keep the patch, do not cut or fix the patch in any way because it can change the amount of hormone delivered to the body. As with other birth control pills, long-term use of contraceptives may have some unwanted effects such as menstrual irregularities, headaches, hormonal changes, etc. These symptoms, you should go to specialists for advice and choice of contraceptives more appropriate.
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