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TriRegol ®

TriRegol is a combined pill for contraception. When you take it, your chances of getting pregnant are very low.

Take our remote consultation. Safely buy TriRegol online. Get it delivered next-day from a UK pharmacy. And again, on repeat, when you need it.

Treatments from only £6.58 per month

Buy TriRegol online and never run out again with an EveAdam subscription.

TriRegol is a combined contraceptive pill, which is just a science-y way of saying that it’s a pill that contains two hormones: an oestrogen and a progesterone. These hormones adjust your menstrual cycle slightly so that you don’t get pregnant. And they can make your periods lighter and more regular too.

EveAdam provides TriRegol and other combined pills on subscription. Online. Following a consultation with our clinician, they’ll issue you with a prescription for TriRegol, and you can choose how often you’d like to receive it. Our pharmacy will then dispense your pill. If it’s approved before 4pm, you’ll get it by secure courier as early as the next working day.

Done and done.

How does TriRegol work?

TriRegol stops you from getting pregnant in three different ways.

When you’re ovulating, the ovaries release an egg for fertilisation by sperm. But the two hormones in the combined pill prevent the ovaries from doing this, to protect you from pregnancy.

The hormones in the pill also make the cervical mucus thicker, which obviously sounds lovely, but has a practical function in that it stops sperm from being able to swim through to an egg.

The lining of the uterus is affected too. This builds up over the course of your cycle, and then breaks down after you’ve had your period. But the pill helps to keep it thin, so that it’s harder for an egg to embed itself to the lining and develop. Because the uterine lining is thinner, it tends to make your periods lighter, and less painful.

What type of pill is TriRegol?

TriRegol is a ‘phasic 21-day’ pill. Sounds proper medical, but all it means is that it’s a pill that contains 2 or 3 different coloured pills in a strip, which contain different amounts of hormones (in this case, three hormones and three colours).

By taking different quantities of hormones during your cycle, phasic pills can help to keep your hormone levels consistent.

The ‘21-day’ bit just means that you take 1 pill every day for 21 days (and then have a 7-day, pill-free break).

Page reviewed by:
Dr Daniel Atkinson
Dr Daniel Atkinson
GP Clinical Lead
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Last updated 23/06/2021

What you need to know about TriRegol

How effective is TriRegol?

Provided you take it correctly - very.[1] Over 99%.

To put this into context, for every 100 women that take TriRegol over a one year period, just 1 will get pregnant.

But if you miss pills from time to time (it happens), or if you make mistakes when you’re using it, it doesn’t offer quite as much protection. For every 100 women that take it over 12 months, 9 will become pregnant. So about 91% effective. If you take it as instructed in the information leaflet that comes with your pill though, you shouldn’t have anything to worry about.

Are phasic pills like TriRegol more effective than monophasic pills?

Do I need a prescription for TriRegol?

How easy is it to buy TriRegol online?

How to take TriRegol

To get immediate protection from pregnancy, start taking TriRegol on the first day of your period. You can also start taking it on days 2-5 of your period, but you’ll need to use an additional form of contraception, such as condoms, for the first 7 days.

Take 1 pill for 21 days at the same time each day, and take each pill in order (as shown on the strips).

Once you’ve taken all 21 pills, take a 7-day, pill-free break. You should experience a bleed during this period. So long as you’ve taken the 21 pills correctly and on time, you don’t need to use any extra contraception during this break.

On the ‘eighth’ day (the day after your 7-day break) start a new strip. You may still be bleeding at this point. Don’t worry about this. Just start your next strip of pills regardless.

Provided you’re taking TriRegol as instructed, you will always start a new strip on the same day of the week.

TriRegol missed pill: what you should do

What dose of hormones does each TriRegol pill contain?

What are the most common TriRegol side effects?

Headaches, nausea, abdominal pain, breast tenderness and sore breasts are all common side effects with TriRegol, and may affect up to 1 in 10 women. Some women also experience mood swings, and bleeding from the uterus that isn’t caused by menstruation.

What should I do if I get side effects with TriRegol?

When should I see a doctor?

Can TriRegol help with acne?

Is TriRegol the same as Logynon?

TriRegol is a similar pill to Logynon, but they’re not the same.

Like TriRegol, Logynon is a phasic pill, so it has three different quantities of hormones in it, and the two hormones are the same ones that you find in TriRegol. Both pills work in the same way in the body.

But the two pills aren’t made by the same company. TriRegol is made by Gedeon Richter, while Logynon is made by Bayer. This means that their packaging isn’t the same, and the pills themselves are slightly different too. The 30/50mcg pills in TriRegol are pink, whereas the 30/50mcg pills in Logynon are light brown.

Logynon is also available as a 21-day pill and as a 28-day (or every day, ED) pill. Logynon ED contains 21 active pills and 7 inactive or placebo pills, for women who would prefer to stay in the routine of taking a pill every day, rather than not taking any pills at all over the 7-day, pill-free break.

TriRegol or Rigevidon: what’s different about them?

If I want to switch from TriRegol to a different pill, what should I do?

TriRegol safety information

You should always read the patient information leaflet that comes with your pill before you start using TriRegol. 

If anything is unclear to you, our clinician should be able to help. Just send them a message. 

Can TriRegol interact with other medications?

TriRegol, like other combined contraceptive pills, can interact with other types of medication, and some treatments may interfere with how effective it is.

If you’ve recently been using, or are currently using, other medications, make our prescriber aware of these during your consultation.

You can read more about combined pills and interactions here.

Can anyone take TriRegol?


[1] Kost,K, Et al. 2007. Estimates of contraceptive failure from the 2002 National Survey of Family Growth. U.S.A. N.I.H. [Accessed April 1st 2021]. 

[2] Arowojolu, A.O. Et al. 2004. Combined oral contraceptive pills for treatment of acne. U.S.A. N.I.H. [Accessed 7th May 2021].