Norethindrone Acetate and Ethinyl-Estradiol and Ferrous Fumarate Mibelas 24 FE is a combination birth control pill containing two progestin and estrogen hormones that prevent pregnancy. It’s taken daily and in addition to preventing pregnancy it’s also used to regulate menstrual cycles and treat moderate acne. Read more about birth control.
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What to expect after starting oral contraceptives 

You may experience the following:

  • Headaches
  • Nausea
  • Sore breasts
  • Changes in your periods (early, late, or stopping altogether while on the pill)
  • Spotting (bleeding between periods or brown discharge)
  • Mood changes, including a change in sex drive
  • Skin changes like acne

The good news is that these side effects usually go away in 2-3 months. So, if you just started the pill and you have side effects that bother you, try to stick it out and give your body a chance to adjust to the hormones.

If you have any questions about your birth control pills, request a medical provider callback from your patient dashboard.

How to remember to take your pill each day

It’s important to take your pill at the same time every day. Here are some ways to help remember:

  • Use a birth control reminder app or set an alarm on your phone.
  • Keep your pill pack next to something you use every day (like your toothbrush or phone charger).
  • Keep your pills in your bag so they’re always with you.
  • Be pill buddies with friends or family members who also take medicine every day and help each other remember.
  • Ask your partner to help remind you.
What to do if you forget to take your birth control pill
  • If you just missed one, take it as soon as you remember. If you don't remember until the next day, go ahead and take 2 pills that day. 
  • If you forget to take your pills for 2 days, take 2 pills the day you remember and 2 pills the next day. You will then be back on schedule. 
  • If you miss more than 2 birth control pills, call your medical provider for instructions. You may need to take one pill daily until Sunday and then start a new pack. Or you might need to throw out the rest of the pill pack and start over with a new pack that same day. 
  • Any time you forget to take a pill, you must use another form of birth control until you finish the pill pack. When you forget to take a birth control pill, you increase the chance of releasing an egg from your ovary.
How to be certain you don’t accidentally get pregnant

You can also use a condom every time you have penis-in-vagina sex. That way you’ll be protected from STDs too. This is especially important if you are taking any other medications that may reduce the efficacy of oral contraceptives.

Factors that lower birth control effectiveness
  • The main thing that prevents the pill from working is not taking it every day.
  • Vomiting or having diarrhea for more than 48 hours (2 days) may reduce how well the pill prevents pregnancy.
  • These medicines or supplements can also lessen pill effectiveness. If you take any of these while you’re on the pill, use condoms as a backup method. Switch to a different method of birth control if you’ll be on them for a long time:

    • The antibiotic Rifampin (other antibiotics don’t make the pill less effective)
    • The antifungal Griseofulvin (other antifungals don’t make the pill less effective)
    • Certain HIV medicines
    • Certain anti-seizure medicines (these are sometimes also used to treat psychiatric disorders like bipolar disorder)
    • The herb St. John’s Wort
The pill may not be right for you if you...
  • Have high blood pressure that isn’t well controlled
  • Are over 35 and smoke
  • Have a history of stroke, heart disease, circulation problems or breast cancer
  • Started breastfeeding within the past month
  • Have migraine headaches with aura
  • Have diabetes-related complications like nephropathy, retinopathy, or neuropathy
  • Recently had surgery
  • Have liver disease
  • Have unexplained uterine bleeding
Treatment for
Generic Name
Norethindrone Acetate and Ethinyl-Estradiol and Ferrous Fumarate
Mibelas 24 FE
Drug Class
Mixed Estrogen-Progesterone

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