No adverse effect has been described. Anti-malarial drug used for anti-inflammatory and immune suppressive medication on collagen diseases like idiopathic arthritis or lupus. After a dose of 5 mg per kilo taken by the mother only 0.2 mg is secreted into breast milk. This amount would not be harmful for the child since the dose to a child as chemo-prophylaxis for malaria is 8 mg per kilo each week. Avoid using it in patients suffering G-6-P-dehydrogenasa. American Academy of Pediatrics: Maternal Medication Usually Compatible With Breastfeeding.