Profilaxia pós-exposição está disponível no SUS e deve ser iniciada em até 72 horas após a pessoa ter tido contato com o vírus
O Carnaval é um período de festividade e diversão, mas também requer atenção aos cuidados com a saúde, especialmente para quem teve uma relação sexual desprotegida e quer se prevenir contra o HIV. Neste caso, a profilaxia pós-exposição (PEP) é uma alternativa segura e eficaz. Disponível no Sistema Único de Saúde (SUS), o tratamento precisa ser iniciado até, no máximo, 72 horas após a exposição.
Além do autoteste, há medicamentos que, combinados, podem ser utilizados até três dias após a suspeita | Foto: Tony Oliveira/Agência Brasília
“Como se trata de uma urgência, a gente alerta que o uso do medicamento só funciona se iniciado até três dias após a exposição à situação de risco; não adianta a pessoa esperar o mês passar para procurar a profilaxia”, destaca Sérgio d’Ávila, psicólogo da Secretaria de Saúde
Sérgio d’Ávila, psicólogo das infecções sexualmente transmissíveis (ISTs) da Secretaria de Saúde (SES-DF), adverte: é imprescindível seguir o prazo para ampliar a efetividade do tratamento.
“Como se trata de uma urgência, a gente alerta que o uso do medicamento só funciona se iniciado até três dias após a exposição à situação de risco; não adianta a pessoa esperar o mês passar para procurar a profilaxia”, ressalta.
Combinação de medicamentos
A PEP consiste em um tratamento combinado entre medicamentos antirretrovirais que devem ser tomados durante mais de três semanas seguidas. A adesão correta ao uso é essencial para reduzir significativamente as chances de infecção pelo vírus da imunodeficiência humana.
“A pessoa que de alguma forma foi exposta ao risco deve procurar de imediato a unidade básica de saúde mais próxima de sua residência e iniciar o tratamento”, indica o psicólogo. “Na oportunidade, esse paciente vai tomar, durante 28 dias, um remédio que reduz quase que por completo as chances de infecção.”
Os remédios utilizados no tratamento são eficazes contra diferentes cepas do HIV. Entre os fármacos utilizados estão o fumarato de tenofovir 300 mg associado à lamivudina 300 mg, além do dolutegravir 50 mg. “A combinação desses medicamentos ajuda a impedir a replicação do vírus no organismo, reduzindo significativamente o risco de infecção”, explica o infectologista Marcos Davi Gomes, do Hospital Regional de Santa Maria (HRSM).
Quem pode fazer
Depois de se medicar, é preciso fazer exames de acompanhamento
A PEP é indicada para qualquer pessoa que tenha passado por uma situação de risco para infecção pelo HIV, como relação sexual sem preservativo ou que tenha sido rompido, contato direto com sangue ou outros fluidos corporais contaminados e acidente com material perfurocortante, principalmente no caso de profissionais da saúde.
A profilaxia, contudo, não se restringe a um público específico, podendo ser procurada por qualquer cidadão que se encaixe em uma dessas situações. Após o período de medicação, a pessoa deve fazer exames de acompanhamento para verificar a condição de saúde.
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