Utrogestan 100 mg: Uses, Dosage, Side Effects, Safety, and Frequently Asked Questions
What Is Utrogestan 100 mg?
Utrogestan 100 mg is a prescription hormone medication that contains 100 mg of micronized progesterone, a form of progesterone that is chemically identical to the hormone naturally produced by the body. It is used to treat conditions related to progesterone deficiency and is commonly prescribed as part of hormone replacement therapy (HRT) or for certain fertility and gynecological conditions, depending on the country and approved indications.
Utrogestan is available as:
- 100 mg soft capsules
- 200 mg soft capsules (in some markets)
Depending on local regulatory approval, the capsules may be taken orally and, in some countries and indications, vaginally. Always use the medication exactly as prescribed by your healthcare provider.
How Utrogestan Works

Progesterone plays an important role in the female reproductive system.
Utrogestan works by:
- Replacing or supplementing natural progesterone.
- Preparing and maintaining the lining of the uterus.
- Protecting the uterine lining during estrogen therapy.
- Supporting normal hormonal balance.
- Helping support pregnancy in certain medically supervised situations where progesterone deficiency is involved.
Utrogestan 100 mg Uses
Depending on the approved indication in your country, Utrogestan may be prescribed for:
Hormone Replacement Therapy (HRT)
In women with an intact uterus who are taking estrogen after menopause, Utrogestan helps protect the lining of the uterus from excessive growth caused by estrogen alone.
Menstrual Disorders
In some countries, it may be used to help manage:
- Irregular menstrual cycles.
- Ovulation-related menstrual disorders.
- Premenstrual symptoms associated with progesterone deficiency.
Fertility Treatment
Depending on local approval, vaginal progesterone may be prescribed to:
- Support the luteal phase during assisted reproductive techniques such as IVF.
- Treat progesterone deficiency associated with infertility.
- Help support early pregnancy in selected patients under specialist supervision.
Benefits of Utrogestan 100 mg
When used as prescribed, Utrogestan may help:
- Replace deficient progesterone.
- Protect the uterine lining during HRT.
- Improve hormonal balance.
- Support fertility treatment when indicated.
- Help regulate certain menstrual disorders.
Utrogestan 100 mg Dosage
The correct dose depends on:
- The condition being treated.
- Age.
- Whether it is used with estrogen.
- Whether it is taken orally or vaginally.
- Your healthcare provider’s treatment plan.
General guidance:
- Take or use the medication exactly as prescribed.
- Do not change your dose without medical advice.
- HRT treatment schedules vary and may be continuous or cyclical.
How to Take Utrogestan
For best results:
- Follow your healthcare provider’s instructions carefully.
- Oral capsules are often taken at bedtime because they may cause drowsiness.
- Swallow oral capsules whole with water.
- If prescribed for vaginal use, use only as directed for that indication.
- Continue treatment for the full prescribed duration.
Missed Dose
If you miss a dose:
- Take it as soon as you remember unless it is almost time for your next dose.
- Skip the missed dose if your next scheduled dose is due soon.
- Do not take two doses at the same time.
Common Side Effects
Common side effects may include:
- Drowsiness.
- Dizziness.
- Headache.
- Breast tenderness.
- Abdominal discomfort.
- Bloating.
- Irregular vaginal bleeding or spotting.
Taking oral Utrogestan at bedtime may help reduce drowsiness during the day.
Serious Side Effects
Seek immediate medical attention if you experience:
- Severe allergic reaction.
- Chest pain.
- Shortness of breath.
- Sudden leg pain or swelling.
- Yellowing of the skin or eyes.
- Severe headache or vision changes.
- Heavy or unusual vaginal bleeding.
Safety Information
Before taking Utrogestan, tell your healthcare provider if you have:
- Liver disease.
- A history of blood clots.
- Breast cancer or other hormone-sensitive cancers.
- Unexplained vaginal bleeding.
- Severe depression.
- Pregnancy or plans to become pregnant.
- Breastfeeding.
Regular follow-up appointments are important during hormone therapy.
Drug Interactions
Utrogestan may interact with:
- Certain epilepsy medications.
- Some antibiotics.
- Certain antifungal medicines.
- Medicines that affect liver enzymes.
- Other hormone therapies.
Always inform your healthcare provider about all prescription medicines, over-the-counter medicines, vitamins, and herbal supplements you take.
Alcohol and Utrogestan
Alcohol may increase drowsiness or dizziness in some people taking oral Utrogestan. Use caution, particularly when starting treatment.
Pregnancy and Breastfeeding
Utrogestan may be prescribed during early pregnancy for specific medical indications under specialist supervision. However, it should only be used during pregnancy when recommended by your healthcare provider.
For HRT, Utrogestan is not intended for use during pregnancy. It is also generally not recommended during breastfeeding unless specifically advised by your healthcare provider.
Storage
Store Utrogestan capsules:
- At room temperature.
- Away from moisture and heat.
- In the original packaging.
- Out of reach of children.
Frequently Asked Questions (FAQs)
What is Utrogestan 100 mg used for?
Utrogestan 100 mg is used to treat progesterone deficiency, including as part of hormone replacement therapy and, in some countries, for certain fertility and gynecological conditions.
Is Utrogestan the same as progesterone?
Yes. Utrogestan contains micronized progesterone, which is chemically identical to the progesterone naturally produced by the body.
Can Utrogestan make you sleepy?
Yes. Drowsiness and dizziness are common side effects, which is why oral doses are often taken at bedtime.
Is Utrogestan a contraceptive?
No. Utrogestan is not a birth control medication and should not be used to prevent pregnancy.
Can Utrogestan be taken with estrogen?
Yes. It is commonly prescribed alongside estrogen as part of hormone replacement therapy for women who still have a uterus to help protect the uterine lining.
Can older adults take Utrogestan?
Yes. It is commonly prescribed for postmenopausal women as part of HRT, provided it is appropriate for their individual medical history.
What happens if I take too much Utrogestan?
An overdose may increase side effects such as severe drowsiness, dizziness, or confusion. Seek medical advice if an overdose is suspected.
Can I stop taking Utrogestan suddenly?
Do not stop taking Utrogestan without consulting your healthcare provider, especially if it is part of an HRT or fertility treatment plan.
Final Thoughts
Utrogestan 100 mg is a micronized progesterone medication used to treat conditions related to progesterone deficiency. It plays an important role in hormone replacement therapy and, in certain situations, fertility treatment and menstrual disorders. Regular follow-up with your healthcare provider helps ensure the treatment remains safe and effective.
Medical Disclaimer: This article is for educational and informational purposes only and should not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.




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