Reduces blood cholesterol levels by mechanisms that have not been not clarified.It accumulates for long periods in fatty tissues and has very slow elimination by bile. Since the last update we have not found published data in relation to breastfeeding. Cholesterol levels in milk are very stable even in hypercholesterolemic women and are not severely affected by diet or nutritional status of the mother, suggesting that 3 is synthesized, at least in part, in the mammary gland (Lawrence 2016, p 289-90).It is not probable therefore, but it is not known if Probucol is able to alter the lipid composition of the milk. Infants need to ingest large amounts of cholesterol, as it is critical to the proper development of the nervous system, cell membranes and is a precursor of several hormones and vitamins. Until there is more data in relation to breastfeeding, it is prudent to avoid using it, at least while breastfeeding exclusively. Suspending the pharmacological treatment of hyperlipidemia during breastfeeding is not likely to alter the long-term outcome of the disease, especially when breastfeeding can be considered therapeutic (Lawrence 2016, p.393). It is advisable to follow a lipid-lowering diet. Because of its side effects in most countries the product has been withdrawn from sale or restrictions have been imposed on its approved use.