Evra (Contraceptive Patches)
3 or more : $33.99 6 or more : $30.99 12 or more : $28.99
- Brand: Janssen-Cilag
- Product Code: JC_EVRA
- Availability: In Stock
Contain synthetic derivatives of the naturally occuring female sex hormones, oestrogen and progesterone. Ethinylestradiol is a synthetic version of oestrogen and Norelgestromin is a synthetic form of progesterone. These hormones are similar to the hormones that are used in combined oral contraceptives (the pill) and work in the same way.
Hormonal contraceptives like Evra work by over-riding the normal menstrual cycle. In a woman's normal menstrual cycle, levels of the sex hormones change throughout each month. The hormones cause an egg to be released from the ovaries (ovulation) and prepare the lining of the womb for a possible pregnancy. At the end of each cycle, if the egg has not been fertilised the levels of the hormones fall, causing the womb lining to be shed as a monthly period.
The hormones that are absorbed into your bloodstream from Evra patches work mainly by tricking your body into thinking that ovulation has already happened. This prevents an egg from ripening and being released from the ovaries each month.
The hormones also increase the thickness of the natural mucus at the neck of the womb, which makes it more difficult for sperm to cross from the vagina into the womb and reach an egg. They also change the quality of the womb lining (endometrium), making it less likely that a fertilised egg can implant there.
Size : 3 patches/box