Medications That Affect Periods

Medications that can affect periods.

If your period has become irregular or gone missing, your doctor will need to work through various possible explanations, including whether it’s a side effect of one of your medications.

Some medications affect the menstrual cycle directly, by impairing ovulation or altering hormone levels. Others act indirectly, by affecting appetite, stress, sleep, or weight. And some can even have a beneficial effect, such as antihistamines, which can lighten periods and improve premenstrual mood symptoms.

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Do Women Need Periods?

do women need periods

With the 2019 news that women don’t need pill bleeds came the assurance that “women don’t need periods.” But is that accurate?

It’s true that women don’t need monthly pill withdrawal bleeds because they’re not periods, but women do need (or at least benefit from) monthly natural menstrual cycles because that’s how we make the hormones estradiol and progesterone.

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How Science Got It Wrong About Progesterone

Progesterone is important for women's health.

Progesterone is important for women’s health. Yet for decades, it has been ignored or wrongly blamed for side effects it doesn’t cause. How did that happen?

A missed opportunity

Progesterone was discovered shortly after estrogen, missing the chance to be included in the simplified narrative of “testosterone for men and estrogen for women.” To complicate things further, progesterone couldn’t initially be made into an oral medication, so it was sidelined in favor of synthetic progestins.

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