Strengths of Loestrin 24 Fe

In 2013, the manufacturer of Loestrin 24 Fe decided to stop making this medication and replace it with Minastrin™ 24 Fe, which comes in exactly the same strengths but is chewable. 
With many medications, different strengths are available and the amount a healthcare provider recommends depends on various factors, such as age, weight, or the condition being treated. However, there is only one strength of Loestrin® 24 Fe (norethindrone/ethinyl estradiol), and every woman takes the same amount, regardless of her particular circumstances.
Each pack of Loestrin 24 Fe contains the same "strength" of hormones for the first three weeks (the first 21 tablets, which are white). The last four pills in the pack, which are brown, do not contain any hormones; however, they do contain iron, which can help prevent anemia due to blood loss during a woman's period.
When starting this type of birth control pill, you can either start it on the first day of your period or on the first Sunday after your period starts. If you miss a dose, your instructions to get back on track will depend on if you are a "day 1 starter" or a "Sunday starter."
(Click Loestrin 24 Fe Dosage to learn more about how and when to take this oral contraceptive, especially when taking it for the first time, and what to do if you miss any doses.)
Last reviewed by: Kristi Monson, PharmD
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