Marvelon 21 Tablets is an oral contraceptive medication that contains a combination of desogestrel and ethinylestradiol. The package includes 21 tablets in a blister pack designed for a 21-day regimen followed by a 7-day break. This prescription-only medication is manufactured by MSD. The medication comes in a distinctive white box with blue accents and clear MSD branding. Each tablet should be taken at the same time daily for maximum effectiveness. As this is a prescription medication, it should only be taken under medical supervision and after consultation with a healthcare provider. The packaging includes clear markings to help track daily doses.