Used in the treatment of hepatitis C, usually in combination with other antivirals. Since the last update we have not found published data on its excretion in breast milk. Its pharmacokinetic data (slightly elevated molecular weight and very high percentage of plasma protein binding) make it very unlikely that significant amounts will pass into milk, so that although there is disagreement (Thompson 2016, Spera 2016), other experts believe that treatment with Paritaprevir, on its own or in combination with Ombitasvir and ritonavir or with Ombitasvir, Ritonavir and Desabuvir is not contraindicated during breastfeeding (LactMed 2016). See below the information of these related products: