Progesterone is one of the body's own hormones, and a micronized capsule provides it in a form that is well absorbed and gentle to use. It is most often prescribed alongside estrogen as part of menopausal hormone therapy, where its role is to protect the lining of the womb, and it is also used to support the second half of the cycle where progesterone is lacking.

Because it is identical to the progesterone your body makes, many women find it well tolerated. Taken at night it can have a mild calming, sleep promoting effect, which is why an evening dose is usually advised.

Your clinician will set the dose and schedule to match the reason you are taking it, whether that is continuous or for set days of the month.

Take the capsules by mouth at night, with or without food, on the schedule your clinician sets, whether continuous or for specific days of the cycle. The evening timing helps with the drowsiness it can cause.

Micronized progesterone 100 mg, identical to the body's own hormone.

Drowsiness, dizziness, headache, breast tenderness and mild bloating are the usual effects, often easing with the evening dose. Mood changes can occur.

Take at night, as it can cause drowsiness and dizziness; do not drive straight afterward. Report any unexpected vaginal bleeding. It is not suitable in certain hormone sensitive conditions, so share your full history.