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Micronized Progesterone (Prometrium)

A nightly pill that protects the uterus when taking estrogen and may help with sleep and mood.

“It makes me drowsy—in a good way. I fall asleep easier, and it keeps me protected.”

How to Get It

Prescription only. Available at retail pharmacies. Generic versions available.

Treatment Timeline

Sleep benefits within days; uterine protection is ongoing

Insurance Details

$15–$50/month with insurance; ~$60–$90 without

More about

Micronized Progesterone (Prometrium)

What to Love

Micronized progesterone is gentle and effective. It’s often better tolerated than synthetic progestins and may offer bonus sleep support. Some women experience grogginess or mood changes, but for many, it’s a smooth ride.

How it Works

Take 100–200mg by mouth at bedtime, typically in combination with estrogen therapy

Micronized progesterone is a bioidentical hormone used to balance estrogen therapy and reduce the risk of endometrial cancer.

This form of progesterone is molecularly identical to what your body makes and is often preferred for its lower risk profile. It’s taken orally at bedtime and has a sedating effect for many women.

When to Avoid

Avoid if allergic to peanuts (Prometrium brand), or if you have a history of progesterone-sensitive cancers or clotting issues

Possible Side Effects

Drowsiness, grogginess, mood changes, spotting

Recommended Brands

Prometrium, generic progesterone capsules

Additional Resources