Nifedipine

Review
In: Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006.
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Excerpt

Because of the low levels of nifedipine in breastmilk, amounts ingested by the infant are small, even in women with a genetic variant of breast cancer resistance protein that increases the amount of drug transferred to milk. No adverse effects have been reported among infants exposed to nifedipine in breastmilk. Nifedipine is used to treat painful nipple vasospasm (e.g., Raynaud phenomenon) in nursing mothers who do not respond to other measures such as hot compresses and avoidance of cold exposure.[1-3] The dosages of nifedipine most commonly reportedly used to treat the condition is 20 to 60 mg daily either as a single dose of a sustained-release product or 10 to 20 mg 3 times daily of an immediate-release product. Lower dosages can be tried if these doses are not tolerated.

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