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Contraceptivos reversíveis de longa duração

LARCs

Os contraceptivos reversíveis de longa duração são métodos de controle de natalidade muito eficazes. Quando você usa um desses, não precisa se lembrar de algo todos os dias. Eles duram entre 2 meses e 10 anos, dependendo da opção utilizada. Podem vir na forma de injeções, implantes e também dispositivos que são colocados no seu útero.

At a glance

  • Long-acting reversible contraception (LARC) provides contraception for months or years.

  • There are four main types of LARC: the implant, the injection, the IUCD, and the IUS.

  • LARCs are very effective because you do not need to remember to take a pill daily.

  • All LARCs require a small procedure for insertion or administration.

  • LARCs are reversible, meaning you can become fertile again after removal or stopping.

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What are the long-acting reversible contraceptive choices?

There are four types of long-acting reversible contraception (LARC).

  • The contraceptive implant. A minor procedure under local anaesthetic is needed to insert the small, rod-shaped implant under the skin in your upper arm, where it remains. The implant releases a progestogen hormone. Each implant lasts three years. Read about the implante contraceptivo.

  • The contraceptive injection. An injection of a progestogen hormone is given every three months (two months for one brand), most commonly into the muscle in your bottom. Read about the injeção contraceptiva.

  • The intrauterine contraceptive device (IUCD). This is also known as 'the coil'. It sits inside the womb (uterus) and, once fitted, can stay in your womb for up to ten years. The device is called a coil because in the 1960s some devices were coil-shaped. Read about the intrauterine contraceptive device.

  • O sistema intrauterino (SIU). This is a specific type of IUCD which releases a progestogen hormone into the womb. It can last for up to five years. Read about the sistema intrauterino (SIU).

LARCs are ideal for women who do not want a baby in the near future. This might be because you think you have completed your family and don't want more children, but want to keep your options open. Or it might be because you are young and not wishing to have children for some years to come. Or because you don't want children at all. Or because you are not currently in a position to have children, because of your job, relationship or finances. The great thing about LARCs is the word "reversible" - so if your situation changes, you can stop using them and become fertile again.

You don't need to take a tablet every day, so for most LARCs, you can forget about contraception for years at a time. This makes them more reliable (as they don't need you to remember, other than when they are due to be replaced).

The main downside is that they all require a small procedure of some sort. However, this does not have to be done very often, and provides long-term, reliable contraception once you have done it.

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This is an individual choice. Different people will prefer different options. Pros and cons of each are weighed up in the separate leaflet called Contraception Methods, and there is plenty of information about each in their individual leaflets as linked above.

Perguntas frequentes

What is the primary benefit of choosing long-acting reversible contraception over other methods?

The main benefit of LARCs is their reliability, as you don't need to remember to take a pill every day. Once in place, they provide contraception for years, meaning you can largely forget about it for extended periods.

How long does each type of LARC protect against pregnancy?

The contraceptive implant lasts for three years. The contraceptive injection needs to be given every three months (or two months for one brand). The intrauterine contraceptive device (IUCD) can stay in for up to ten years, and the intrauterine system (IUS) can last for up to five years.

Can I have children after using long-acting reversible contraception?

Yes, LARCs are 'reversible'. This means that if your circumstances change and you decide you want to have children, you can stop using them and become fertile again.

Are there any minor procedures involved with these types of contraception?

Yes, all LARCs require some form of minor procedure. For example, the implant is inserted under the skin, injections are given for the contraceptive injection, and the IUCD and IUS are fitted inside the womb. However, these procedures are not needed very often.

How often do I need to get the contraceptive injection?

The contraceptive injection is typically administered every three months, although one brand requires an injection every two months.

Are 'the coil' and the IUCD the same thing?

Yes, 'the coil' is another common name for the intrauterine contraceptive device (IUCD). It is called this because some of the original devices in the 1960s were coil-shaped.

Leitura adicional e referências

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About the authorView full bio

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Dra. Mary Harding, MRCGP

Médico Generalista, Autor Médico

BA, MA, MB, BChir, MRCGP, DFFP

Dr Mary Harding qualified from Cambridge University medical school in 1989.

About the reviewerView full bio

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Dr Colin Tidy, MRCGP

Médico Generalista, Autor Médico

MBBS, MRCGP, MRCP (Paediatrics), DCH

Dr Colin Tidy é um médico do NHS, baseado em Oxfordshire.

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