Lisdexamfetamine is a prodrug of dextroamphetamine. In dosages prescribed for medical indications, some evidence indicates that dextroamphetamine might not affect nursing infants adversely. The effect of dextroamphetamine in milk on the neurological development of the infant has not been well studied. It is possible that large dosages of dextroamphetamine might interfere with milk production, especially in women whose lactation is not well established. Relevant published information was not found as of the revision date on the safety of breastfeeding during amphetamine abuse. One expert recommends that amphetamines not be used therapeutically in nursing mothers.[1]