A mini pill with a 12 hour window.

Zelleta is a mini pill that gives close to 100% protection against pregnancy. It’s easy to use and very reliable.
Get your contraceptive treatment when you need it. Order Zelleta online from Treated and you’ll receive it regularly on subscription, meaning you’ll never run out of your pill again.
Zelleta is a progesterone-only pill (POP) or mini pill which is taken once daily at the same time. Because it doesn’t contain oestrogen, it’s a pill that’s suitable for women who are sensitive to the hormone or who can’t take it. And you don’t need to take a seven-day, pill-free break when you use it either. Just take one pill at the same time each day.
Each Zelleta 75 mg tablet affects the body in three separate ways.
Firstly, it prevents an egg from being released, so even if a sperm were to reach it, there would be nothing there to fertilise. Secondly, by thickening cervical fluid it makes the neck of the womb extremely difficult for the sperm to pass, so even if an egg has been released, it can’t be fertilised.
Very safe. It’s a better option for women who can’t take combined pills, because of the oestrogen in them. For example, women who get migraines or who have a slightly higher risk of getting blood clots (so women who smoke and are over 35).
Over 99%, if you take it in the right way. This means that fewer than one in 100 women taking it this way will get pregnant over a whole year.
As with any contraceptive pill, this does mean taking it at the same time each day. But Zelleta comes with a 12-hour missed pill window. The traditional progestogen-only pill only has a 3-hour missed window, so if you’re busy or a little forgetful, Zelleta might be just the treatment for you.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Swallow one pill every day, at the same time, and you’ll be close to 100% protected against pregnancy.
As timing and daily use is key, each Zelleta pill in the strip has a day of the week marked above it. This helps you to keep track of what you have or haven’t taken.
It depends on when you start using it.
If you have not taken any hormonal contraception the previous day, you can get immediate benefits from Zelleta by taking the first pill on the first day of your period. If you take Zelleta on the second to fifth day of your cycle, you will need to take extra precautions by using a barrier contraceptive for seven days.
If you have taken another mini pill the day before starting to take Zelleta, your protection might be reduced for a short time when you switch, so use extra precautions (condoms) for the next seven days. If you’re switching from a combined pill to the mini pill, the same applies.
Don’t panic. There are a few things you can do to stay protected. If you remember to take the pill within 12 hours of its scheduled time, simply take it and carry on the next day as you normally would have. There is no need for any extra precautions.
Beyond 12 hours, take the missed pill as soon as you remember, even if this means taking two at the same time. You’ll then need to use a barrier contraceptive for seven days.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
Effects of progestin-only birth control on weight. Cochrane.
Oral Contraceptive Pills. Stat Pearls. U.S.A. NCBI.
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Mini Pills: Here are some other options.
Probably the most well-known brand of mini pill. 12 hour leeway if you're late taking it.
Very similar to Cerazette and Zelleta. 28 day pill. 12 hour leeway if you take it late.
Similar to Cerazette, Zelleta and Cerelle, but you don't need a prescription for it.
Slightly different type of mini pill that contains levonorgestrel, and comes in strips of 35.
Norethisterone-based alternative. 3 hour window if you're late taking it.
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