Can I Breastfeed After Taking Medication for Influenza? - Influenza

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Can I breastfeed after taking Yikexin?


Two days ago, I was diagnosed with influenza A, and the doctor prescribed medication that is not safe for breastfeeding.
However, my child has been exclusively breastfed since birth and now refuses to take a bottle, showing strong aversion to it.
Additionally, my child is not eating much solid food, and over the past two days, I have noticed that the urine is yellow.
What should I do, doctor?

Tsai, 30~39 year old female. Ask Date: 2019/02/09

Dr. Liao Zhongxin reply Influenza


Dear readers: Please refer to the relevant information from the Centers for Disease Control.
A: 2.5 Use in Special Populations 2.5.1 Pregnancy Animal reproductive studies conducted in rats and rabbits have not shown any teratogenic effects.
In studies regarding fertility and reproductive toxicity in rats, there is no evidence that any dose of oseltamivir affects fertility.
The amount of drug exposure to the fetus in rats and rabbits is approximately 15-20% of that in the mother.
Although no controlled clinical trials have been conducted on the use of oseltamivir in pregnant women, post-marketing and observational study data indicate that this patient population benefits from the current dosing regimen.
Pharmacokinetic analyses show that pregnant women have lower exposure to the active metabolite; however, dose adjustment is not recommended when used for the treatment or prevention of influenza (see 3.2.5 Pharmacokinetics in Special Populations).
These data and the results of animal studies do not indicate any direct or indirect harmful effects on pregnancy, embryo/fetal development, or postnatal development (see 3.3 Preclinical Safety).
Considering the known safety data, the pathogenicity of circulating influenza virus strains, and the condition of pregnant women themselves, Tamiflu may be used in pregnant women.
2.5.2 Breastfeeding Mothers In lactating rats, oseltamivir and its active metabolites are secreted into breast milk.
Information on the effects of oseltamivir on breastfeeding infants and its excretion in breast milk is very limited.
Limited data indicate that oseltamivir and its active metabolites can be detected in breast milk, but their concentrations are low and below therapeutic levels for infants.
Considering the above information, the pathogenicity of circulating influenza virus strains, and the potential condition of breastfeeding women, and confirming that the benefits of oseltamivir for breastfeeding mothers outweigh the potential risks to nursing infants, oseltamivir may be administered to breastfeeding women.
The information suggests that taking antiviral medication does not pose significant harm to breastfeeding infants, and since the peak of the outbreak has passed, the above information can be referenced.
Thank you!

Reply Date: 2019/02/09

More Info


When it comes to breastfeeding after taking medication for influenza, it’s essential to consider both the safety of the medication and the well-being of your infant. In your case, you mentioned that your doctor advised against breastfeeding while on the medication prescribed for influenza. This is a common precaution, as certain medications can pass into breast milk and potentially affect the nursing infant.

First and foremost, it’s crucial to follow your doctor’s advice regarding medication use and breastfeeding. If your doctor has recommended that you refrain from breastfeeding while taking the medication, it’s likely due to concerns about the potential effects on your baby. Many medications can have varying degrees of transfer into breast milk, and some may not be safe for infants, especially if they are very young or have underlying health conditions.

Given that your child has been exclusively breastfed and is resistant to bottle feeding, this can create a challenging situation. It’s understandable that you are concerned about your child’s hydration and nutrition, especially if you’ve noticed signs of dehydration, such as dark yellow urine. Here are some steps you can take to address this situation:
1. Consult Your Pediatrician: Reach out to your child’s pediatrician for advice. They can provide guidance on how to ensure your baby stays hydrated and nourished during this time. They may suggest alternative feeding methods or strategies to encourage your child to take a bottle or eat solids.

2. Consider Pumping: If your medication allows, consider pumping your breast milk and discarding it until the medication is cleared from your system. This way, you can maintain your milk supply while ensuring that your baby receives breast milk once it is safe to do so. Make sure to discuss this option with your healthcare provider.

3. Hydration and Nutrition: If your baby is showing signs of dehydration, it’s important to ensure they are getting enough fluids. If they are not taking a bottle, you might try using a sippy cup or a syringe to offer small amounts of expressed breast milk or formula. If your baby is old enough for solids, you can also offer hydrating foods like pureed fruits or vegetables.

4. Monitor Symptoms: Keep an eye on your baby’s urine output and overall behavior. If you notice any signs of dehydration (such as fewer wet diapers, lethargy, or irritability), seek medical attention immediately.

5. Discuss Medication Alternatives: If you are concerned about the duration of time you need to avoid breastfeeding, discuss with your doctor the possibility of alternative medications that may be safer for breastfeeding mothers. There are often options available that can effectively treat influenza without posing a risk to your baby.

6. Plan for Transition: If your baby is resistant to bottle feeding, consider gradually introducing the bottle when they are calm and not overly hungry. Sometimes, a different caregiver can help with this transition, as babies may be more willing to accept a bottle from someone else.

In summary, while it’s important to adhere to your doctor’s recommendations regarding medication and breastfeeding, there are steps you can take to ensure your baby remains nourished and hydrated during this time. Always consult with healthcare professionals for personalized advice tailored to your specific situation. Your health and your baby’s health are both paramount, and with the right support, you can navigate this challenging period effectively.

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