Anticoncepcionais combinados estrogênio + progestagênio (AOCs)

Nome original: (Anticonceptivos Combinados Estrógeno + Progestágeno, AOCs)

Compatibilidade

Compatibilidade provável

Bastante seguro

Bastante seguro. Efeitos adversos leves ou pouco prováveis. Compatível em determinadas circunstâncias. Acompanhamento recomendado. Leia o Comentário.

Leia o comentário completo: o nível resume o risco, mas não substitui contexto clínico, dose, idade do bebê ou orientação profissional.

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Comentário

Anticoncepcionais combinados de um estrogênio (etinilestradiol, estradiol, mestranol) e um progestágeno derivado da 19-nor testosterona (desogestrel, drospirenona, etonogestrel, levonorgestrel, norelgestromina, noretindrona...) se comercializam em forma de pílulas de uso oral (anticoncepcional oral combinado, AOC), anéis vaginais (duração 3 semanas), adesivos transdérmicos (duração 3 semanas) ou implantes subcutâneos (duração 3 anos). Durante a amamentação são preferíveis os anticoncepcionais com só progestágeno aos combinados com estrogênio e, neste caso, os de menor dose de estrogênio. (Sridhar 2017, CDC 2016, 2013 e 2010, WHO/OMS 2015, Altshuler 2015, Bhardwaj 2015, Berens 2015, CLM 2012, Amir 2011, FFPRHC 2004, WHO 2002, Diaz 2002, Moretti 2000, WHO 1988) Primeiras 4-6 semanas pós-parto métodos não hormonais são de primeira escolha, seguido de DIUs e implantes de progestágenos. (Nguyen 2024, Berens 2015, Mwalwanda 2013, Rowe 2013, CLM 2012). Se se toma um AOC durante a amamentação convém não começar antes do mês e meio após o parto e vigiar a produção de leite por meio do crescimento do bebê que mama. (Moretti 2000) Vários autores não encontraram efeitos negativos na produção de leite materno ou no aumento de peso do bebê que mama quando os AOC se iniciam após as primeiras 2, ou melhor 6, semanas pós-parto. (Tepper 2015, Bahamondes 2013, Espey 2012, Toddywalla 1977) Métodos anticoncepcionais só com progestágeno não têm efeitos adversos sobre o crescimento, a saúde ou o desenvolvimento, nem sobre as imunoglobulinas nem as hormonas sexuais dos bebês que mamam, nem afetam negativamente a amamentação materna. Um único estudo sobre a pílula de desogestrel informou de dois casos de ginecomastia em bebês que mamam expostos. (Kapp 2010) Não se observaram problemas clínicos nem de desenvolvimento físico ou psicomotor, a curto e longo prazo (8 anos) em bebês que mamam cujas mães tomavam anticoncepcionais orais combinados. (Lopez 2015, Nilsson 1986), salvo algum caso publicado há anos de ginecomastia transitória em bebês que mamam. (Madhavapeddi 1985, Nilsson 1978, Marriq 1974, Curtis 1964) Outros autores encontraram menor duração da amamentação e/ou diminuição da produção de leite e/ou menor ganho de peso dos bebês que mamam, com a utilização de AOC, em especial se se utilizavam antes de 6 semanas pós-parto. (Karlsson 2025, Goulding 2018, WHO 1988, Nilson 1986, Diaz 1983, Guiloff 1974, Miller 1970, Kora 1969, Kaern 1967) e pelo menos duas mães experimentaram diminuição de produção láctea importante ao tomar um AOC (etinilestradiol 0,03 mg + drospirenona 3 mg) além das 6 semanas pós-parto. (Karlsson 2025) Anticoncepcionais hormonais, tanto combinados como de só progestógeno, não alteram a composição do leite, nem em minerais (Mg, Fe, Cu, Ca, P), nem em gorduras, lactose, proteínas ou calorias. (Urzica 2013, Dórea 2000, 1999 e 1998, Costa 1992) Academia Estadounidense de Pediatria: os AOC são usualmente compatíveis com a amamentação. (AAP 2001) OS ESTROGÊNIOS se excretam em quantidade insignificante ou nula no leite materno. (Perheentupa 2004, Betrabet 1986, Nilsson 1978). Etinilestradiol teve resultado indetectável no leite materno. (Segev 2025) Há evidência de escassa qualidade de que os estrogênios podem diminuir a produção de leite materno ou a duração da amamentação, em especial se se administram durante as primeiras semanas pós-parto e a doses iguais ou superiores a 30 microgramas (0,03 mg) diários. (Moses 2009, WHO 2002, AAP 2001, Moretti 2000, WHO 1988, Nilsson 1986, Tankeyoon 1984, Díaz 1983, Peralta 1983, Croxatto 1983, Guiloff 1974, Kaern 1967) Estrogênios, sós ou associados a progestágenos, se utilizaram no tratamento do excesso de produção de leite (Johnson 2020) e para suprimir a amamentação (Louviere 1975, Piya 2004, Balmer 1971), embora com escassa efetividade. (Kaern 1967) Doses altas de estrogênio durante a adolescência não têm nenhum efeito sobre a amamentação materna posterior. (Jordan 2007) OS PROGESTÁGENOS se excretam no leite materno em quantidade clinicamente não significativa (Croxatto 1987, Betrabet 1987, Nilsson 1977) e não se observaram problemas em bebês que mamam cujas mães os tomavam. (Roy 2020, Bahamondes 2013, Dutta 2013, Shaamash 2005, Bjarnadóttir 2001, Díaz 1987) Quando se mediram, os níveis de progestágeno no plasma ou urina desses bebês que mamam foram muito baixos. (Bassol 2002, Patel 1994, Betrabet 1987, Diaz 1987, Nilsson 1977) Pode consultar abaixo a informação deste grupo relacionado: ATC G03AA e G03AB: Anticoncepcionais hormonais. Estrogênios e Progestágenos

Farmacocinética

VariávelValorUnidade
Dosis RelativaEstrog: < 1; Progest: 0,1-3,7%

Bibliografia

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Como ler os níveis

  1. CompatívelSeguro, melhor opção
  2. Compatibilidade provávelBastante seguro
  3. Compatibilidade limitadaPouco seguro
  4. IncompatívelMuito inseguro

A cor ajuda a localizar o nível; o símbolo, o rótulo e o texto trazem a mesma informação.