Microgynon 30 functions as an oral contraceptive medication containing levonorgestrel and ethinylestradiol as its primary active components. These ingredients work together to inhibit ovulation throughout the menstrual cycle. Distinguished by its reduced oestrogen content compared to many combined contraceptive pills, Microgynon 30 offers a lower-hormone alternative.
The Microgynon ED variant shares identical contraceptive properties with Microgynon 30 but comes in 28-tablet packs designed for continuous daily use. The last seven tablets are hormone-free placebo pills. This daily-dosing format helps establish a consistent routine, reducing the likelihood of forgetting to resume treatment after the pill-free interval.

How does it work?

Conception happens when sperm fertilizes an egg released by the ovaries. During a typical menstrual cycle, one egg is released monthly through ovulation—a process regulated by progesterone and oestrogen, the body's natural sex hormones. Microgynon 30 incorporates synthetic versions of these hormones (levonorgestrel and ethinylestradiol), which regulate hormone levels to prevent egg release. Additionally, the pill increases cervical mucus thickness, creating a barrier that makes it harder for sperm to reach the uterus.
In a standard cycle, the uterine lining (endometrium) thickens to support a potential fertilized egg. Microgynon 30 limits this thickening process, further decreasing the chance of embryo implantation. A beneficial side effect of this is that menstrual periods typically become lighter.
Beyond contraception, Microgynon 30 may help reduce acne and provide protective effects against certain conditions including fibroids, ovarian cysts, and pelvic inflammatory disease. It should be noted that this medication does not offer protection against sexually transmitted infections.