
Prefemin
Helps ease unpleasant PMS symptoms such as premenstrual breast tenderness, headache, and irritability
For People Like This · At Times Like These
Product Overview
Prefemin is a Class 2 OTC medicine with chasteberry extract as its active ingredient. It is used to help ease unpleasant symptoms that appear as premenstrual syndrome (PMS), such as breast tenderness, headache, irritability, a short temper, and mood changes. It is an oral medicine intended for adult women (18 years and older) and is designed to be taken daily according to a fixed dosage regimen.
Product Features
Chasteberry extract as the active ingredient
Active IngredientA medicine with chasteberry dry extract as the active ingredient, intended to help ease unpleasant symptoms of premenstrual syndrome.
Addresses multiple PMS symptoms
IndicationsUsed to help ease various premenstrual symptoms (premenstrual syndrome), including breast tenderness, headache, irritability, a short temper, and mood changes.
Once-daily dosing design
Ease of UseAdult women (18 years and older) take it once daily. Designed so you can take it at a set time every day, making it easier to avoid missed doses.
Active Ingredient (per tablet)
| Ingredient | Amount | Category |
|---|---|---|
| Chasteberry dry extract | 40 mg (from 180 mg chasteberry) | Active Ingredient |
Indications
Dosage and Administration
| Age | Dose per time | Times per day |
|---|---|---|
| Adult women (18 years and older) | 1 tablet | Once daily |
| Under 18 years | Do not take | — |
❓ Frequently Asked Questions
QWhen can I expect results?
AThe labeling states that when started immediately after the onset of menstruation, symptom improvement is often noticeable after about one month. If symptoms do not improve after about one month of use, stop taking this product and consult a physician, pharmacist, or registered seller.
QDo I need to take it every day?
ATake it every day according to the prescribed dosage and administration. To help prevent missed doses, it is recommended that you choose a convenient time and take it at the same time every day.
QHow long may I continue taking it?
AEven if symptoms improve, if you continue taking it for more than 3 months, consult a physician regularly.
QCan I take it while breastfeeding or pregnant?
ADo not take this product while breastfeeding. It is not a medicine for pregnant women or those who may be pregnant, and safety during pregnancy has not been established.
QCan I take it together with foods that contain chasteberry?
AWhile taking this product, do not consume foods that contain chasteberry (also known as chaste tree or agni).
QCan symptoms get stronger right after starting?
AIn rare cases, premenstrual symptoms may appear more strongly when you start taking this product. If you are concerned, consult a physician, pharmacist, or registered seller.
- Do not: Do not take this product while breastfeeding.
- Do not take if you have ever had an allergic reaction to this product or to chasteberry (also known as chaste tree or agni).
- While taking this product, do not consume foods that contain chasteberry (also known as chaste tree or agni).
- The following people should consult a physician, pharmacist, or registered seller before use: those under a physician’s care; those who have ever had an allergic reaction to medicines or similar products; those taking Kampo (traditional Japanese herbal) preparations; those diagnosed with depression; those with breast tenderness or lumps unrelated to the menstrual cycle; and those with irregular menstruation.
- If possible side effects appear (skin: rash/redness, itching / digestive system: nausea, diarrhea / other: menstrual abnormalities, etc.), stop taking this product immediately and consult a physician, pharmacist, or registered seller with the package insert.
- If symptoms do not improve after about one month of use, stop taking this product and consult a physician, pharmacist, or registered seller.
- Even if symptoms improve, if you continue taking it for more than 3 months, consult a physician regularly.
- In rare cases, premenstrual symptoms may appear more strongly when you start taking this product.
- This is not a medicine for pregnant women or those who may be pregnant. Safety during pregnancy has not been established.
- Do not take if under 18 years of age.
- Store in a cool place with low humidity, away from direct sunlight.
- Store out of reach of children.
- Do not transfer to another container (this may cause misuse or a change in quality).
- Do not take products past their expiration date.







































































