Synphase

Short-acting birth control

Synphase is a combined contraceptive pill that offers reliable pregnancy prevention.

Synphase is not available in Ireland, but there are many free alternatives, if you’re eligible.

Requirement 1.

You’re a person with a uterus.

Requirement 2.

You’re aged between 17 and 35.

Requirement 3.

You’re living in Rep. of Ireland.

Requirement 4.

You’ve a PPS number (PPSN).

Effective pregnancy prevention: Synphase is a reliable combined oral contraceptive when taken correctly.
Phased hormone dosing: Mimics your natural cycle more closely than standard pills.
Regulates menstrual cycles: Helps create more predictable, manageable periods.
Reduces period pain: Many users report fewer cramps and less discomfort during menstruation.
Improves PMS symptoms: Can ease mood swings, bloating and headaches linked to hormonal changes.
Clearer skin: Hormonal regulation may improve acne in some users.
Non-contraceptive benefits: May reduce the risk of certain ovarian and endometrial conditions.

Check out some of our more frequently asked questions about Synphase here.

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While we strive to keep this page current, product information may change.

Patients should consult a healthcare professional and refer to the MHRA info on Synphase.

Synphase is a combined oral contraceptive pill used to prevent pregnancy. It also helps regulate periods, reduce menstrual pain and manage hormonal symptoms like PMS.
It contains synthetic versions of oestrogen and progestogen, which prevent ovulation, thicken cervical mucus and alter the womb lining to reduce the chance of pregnancy.
Take one pill daily for 21 days, followed by a 7-day break when your period usually occurs. Start a new pack after the break, even if you’re still bleeding.
Synphase uses a phased or triphasic approach, meaning hormone levels vary through the cycle. This can better mimic natural hormonal changes and suit some women better.
Yes. Many users find their periods become lighter, shorter and less painful when taking Synphase consistently.
No. Synphase only prevents pregnancy. You should still use condoms to protect against sexually transmitted infections.
Missing a pill may reduce effectiveness. Follow the leaflet guidance based on how many pills were missed and when. Use backup contraception if needed.
Some women find Synphase helps clear up hormonal acne, though results vary. It may be prescribed off-label for this purpose by a doctor.
Common side effects include nausea, breast tenderness, mood changes or slight weight fluctuation, especially when first starting the pill. These often settle over time.
It’s not suitable for smokers over 35, those with certain health conditions or a history of blood clots. Always check with us before starting.