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Marvelon (Ethinyl Estradiol/Desogestrel)

  Marvelon (Ethinyl Estradiol/Desogestrel)

Frequently Asked Questions

  1. What is Marvelon used for?
    Marvelon is primarily used as a contraceptive to prevent pregnancy. It works by preventing ovulation, making it difficult for sperm to reach an egg, and preventing an egg from implanting in the womb. Marvelon may also be used to regulate the menstrual cycle.
  2. How should Marvelon be taken?
    Marvelon comes in 21-day or 28-day packs. For the 21-day pack, take one pill daily for 21 days followed by a 7-day pill-free break. For the 28-day pack, take one pill daily for 21 days followed by 7 days of reminder pills. Pills should be taken at the same time each day.
  3. How does Marvelon work?
    Marvelon prevents ovulation (the release of an egg from an ovary), thickens the mucus of the cervix to hinder sperm penetration, and alters the lining of the womb to prevent egg implantation.
  4. What are the possible side effects of Marvelon?
    Common side effects include nausea, headaches, breast tenderness, mood changes, and slight weight gain. Some women may experience increased blood pressure or a change in their blood sugar levels. Rarely, Marvelon can lead to more serious side effects like blood clots.
  5. What should I do if I miss a pill?
    If you miss one pill, take it as soon as you remember and then continue taking the rest at the usual time (this may mean taking two pills in one day). If you miss more than one pill, or start a new pack one day late, your contraceptive protection may be reduced, and you should use additional contraception for 7 days.
  6. Can I take Marvelon if I am breastfeeding?
    Marvelon is generally not recommended for use during breastfeeding. Other forms of contraception may be more suitable during this time.
  7. How do I switch from another contraceptive to Marvelon?
    If switching from another combined oral contraceptive, you can start Marvelon the day after the last active tablet of your previous pill. If you're switching from a progestogen-only pill, implant, or injection, follow your doctor's instructions to ensure continuous contraceptive protection.
  8. Can Marvelon affect my menstrual cycle?
    Yes, Marvelon can cause changes in your menstrual cycle, including lighter or skipped periods. Continuous use or back-to-back cycles can delay periods.
  9. Does Marvelon offer protection against sexually transmitted infections (STIs)?
    No, like other oral contraceptives, Marvelon does not protect against STIs. It's recommended to use condoms for STI protection.
  10. How soon after starting Marvelon am I protected from pregnancy?
    If you start taking Marvelon on the first day of your period, you are protected immediately. If started at any other time, use additional contraception, like condoms, for the first 7 days.
Dr. Conor Sheehy, PharmD, BCPS

References
Desogestrel and ethinyl estradiol [package insert]. Whitehouse Station, NJ: Merck & Co; 2017.

Dr. Conor Sheehy, PharmD, BCPS is a practicing clinical pharmacist that works in primary care. He supports other members of the healthcare team including physicians, mid-level providers, nurses, and other clinical staff. He also likes to use his drug knowledge to inform his patients and the public about the benefits and risks they can expect from their medications. His clinical specialties include: anticoagulation, diabetes management, and psychiatric care.

Please note that due to government rules and regulations, orders may not exceed 3 months in supply.
Please call 1-800-258-0477 or email us if you have any questions or concerns.