How Long After Dermatology Treatment Can I Resume Breastfeeding? - Pharmacology

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How long does it take for the body to metabolize dermatological medications?


I have developed a pustule, and the doctor prescribed both oral medication and topical ointment.
One of the medications is an antibiotic, and the topical ointment is for treating Staphylococcus infections (Furacin).
Since I am currently breastfeeding, the doctor advised me to pause breastfeeding.
However, I would like to know how long I need to wait for the medication to be metabolized before I can resume breastfeeding.
If I am only using the ointment, is it still not safe to breastfeed? I have previously heard from other dermatologists that continuing to breastfeed is not a problem, so I would like to get your opinion on this.
Thank you!

peggy, 30~39 year old female. Ask Date: 2010/03/22

Dr. Hou Fangmin reply Pharmacology


Hello: This ointment is classified as Category D for pregnancy, meaning it can cross the placenta.
Clinical studies in humans have shown that this medication has adverse effects on the embryo.
However, if the benefits of this medication significantly outweigh those of other treatments, it may still be considered acceptable for use in pregnant women despite its risks.
It is advisable to avoid this medication during breastfeeding.
The drug is metabolized by the liver, with a half-life of 5-6 hours.
I hope this response meets your needs.
Wishing you a happy motherhood.

Reply Date: 2010/03/22

More Info


When it comes to breastfeeding after dermatological treatment, especially when antibiotics or topical medications are involved, it's essential to consider the specific medications prescribed and their potential effects on breast milk.
In your case, you mentioned that you were prescribed an oral antibiotic and a topical ointment for a staphylococcal infection. Generally, the safety of breastfeeding while on medication depends on the type of drug, its dosage, and how long it stays in your system.

1. Oral Antibiotics: Many antibiotics are considered safe for breastfeeding mothers, but some may not be. Commonly prescribed antibiotics like penicillin and cephalosporins are usually safe, while others may require a temporary cessation of breastfeeding. The half-life of the antibiotic will determine how long it stays in your system. For instance, if the half-life is 6 hours, it typically takes about 5 half-lives for the drug to be eliminated from your body, which would be approximately 30 hours. However, this can vary based on individual metabolism and the specific antibiotic used.

2. Topical Medications: Topical treatments, such as ointments for skin infections, generally have a lower risk of affecting breast milk. The absorption of these medications into the bloodstream is minimal, and most dermatologists agree that using topical antibiotics does not usually require stopping breastfeeding. However, it is crucial to apply the ointment carefully and wash your hands thoroughly before handling your baby to minimize any potential transfer of the medication.

3. Consulting Your Doctor: Since you have received conflicting advice from different dermatologists, it is best to consult the prescribing physician for specific guidance regarding your medications. They can provide tailored advice based on the exact medications you are using and your health status.

4. General Guidelines: If you are advised to stop breastfeeding while on medication, it is typically recommended to wait until the medication is fully cleared from your system before resuming. If you are using topical medications, you may be able to continue breastfeeding, but always confirm this with your healthcare provider.

5. Monitoring Your Baby: If you resume breastfeeding after treatment, keep an eye on your baby for any unusual symptoms, such as gastrointestinal upset or rashes, which could indicate a reaction to the medication.
In summary, the duration you should wait before resuming breastfeeding after dermatological treatment largely depends on the specific medications prescribed. For oral antibiotics, a general rule of thumb is to wait at least 24-48 hours after completing the course, but this can vary. For topical medications, breastfeeding is often safe, but always consult your healthcare provider for the most accurate advice.
Lastly, if you have concerns about the impact of any medication on your breastfeeding journey, consider discussing alternative treatments or adjustments with your healthcare provider that may allow you to continue breastfeeding without interruption. Your health and your baby's health are paramount, and finding a balance that works for both of you is essential.

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