Marvelon is a popular oral contraceptive pill designed to provide effective birth control for 21 days with a pack containing 21 tablets. Each tablet contains a combination of two hormones, ethinylestradiol and desogestrel, which work together to prevent pregnancy by inhibiting ovulation, thickening cervical mucus to prevent sperm penetration, and altering the endometrium to prevent implantation. Marvelon offers reliable protection when taken correctly, making it a convenient and trusted choice for many women. The tablets are easy to swallow and should be taken at the same time each day for optimal effectiveness.