What Drugs Pass Through Breast Milk?

When considering which drugs pass through breast milk, it is essential to understand that nearly all medications have the potential to transfer into breast milk, to some extent. However, there are a few exceptions where certain drugs, such as heparin and insulin, are too large to cross biological membranes, hence not passing through breast milk.

Mothers who are breastfeeding need to be cautious about the medications they take, as these substances can be transferred to their infants through breast milk. While some drugs may have minimal effects on the nursing baby, others can pose serious risks and adverse effects, as the infant may not benefit from their presence in breast milk and is essentially an ‘innocent bystander’ in this situation.

It is crucial for breastfeeding mothers to consult with healthcare providers, such as doctors or pharmacists, before taking any medications to ensure the safety of their infants. Many healthcare professionals can provide guidance on which medications are safe to use while breastfeeding and which ones should be avoided due to their potential to pass through breast milk and affect the baby.

Common over-the-counter medications, such as pain relievers like ibuprofen or acetaminophen, are generally considered safe for use while breastfeeding. These drugs are known to have minimal transfer into breast milk and are unlikely to cause harm to the nursing baby when taken according to the recommended dosage.

Antibiotics are another class of drugs that can pass through breast milk. While certain antibiotics are considered safe to use while breastfeeding, others may pose risks to the infant, such as causing digestive upset or allergic reactions. It is important for nursing mothers to discuss the use of antibiotics with their healthcare providers before taking them.

Antidepressants and psychiatric medications are medications that are known to pass through breast milk. These drugs can have varying effects on infants, ranging from minimal impact to more severe side effects. Mothers who are taking antidepressants or psychiatric medications should consult with their healthcare providers to weigh the risks and benefits of continuing these medications while breastfeeding.

Some medications used to treat chronic conditions, such as high blood pressure or diabetes, can also pass through breast milk. It is important for nursing mothers with these conditions to work closely with their healthcare providers to determine the safest course of treatment while breastfeeding, balancing the needs of the mother with the health of the infant.

Illicit drugs and recreational substances can also pass through breast milk and pose serious risks to nursing infants. Drugs such as marijuana, cocaine, or heroin can have harmful effects on the baby’s developing system, leading to long-term health consequences. It is crucial for breastfeeding mothers to avoid the use of illicit drugs and recreational substances to protect their infants.

Herbal supplements and alternative medications are another category of substances that can pass through breast milk. While some herbal remedies are considered safe for breastfeeding mothers, others may have unknown effects on nursing infants. It is important for nursing mothers to discuss the use of herbal supplements with their healthcare providers before taking them.

In conclusion, when considering what drugs pass through breast milk, it is essential for breastfeeding mothers to prioritize the safety and well-being of their infants. Consulting with healthcare providers before taking any medications, including over-the-counter drugs, antibiotics, antidepressants, or herbal supplements, can help ensure that nursing mothers make informed decisions that protect their babies from potential harm.

What Drugs Pass Through Breast Milk?

Photo of author

Nancy Sherman

Nancy Sherman has more than a decade of experience in education and is passionate about helping schools, teachers, and students succeed. She began her career as a Teaching Fellow in NY where she worked with educators to develop their instructional practice. Since then she held diverse roles in the field including Educational Researcher, Academic Director for a non-profit foundation, Curriculum Expert and Coach, while also serving on boards of directors for multiple organizations. She is trained in Project-Based Learning, Capstone Design (PBL), Competency-Based Evaluation (CBE) and Social Emotional Learning Development (SELD).