Do Cough Drops Decrease Milk Supply? What Moms Need to Know
Posted on April 09, 2026
Posted on April 09, 2026
Picture this: it’s 2:00 AM, and you’ve finally settled your baby into their crib after a long cluster-feeding session. You’re exhausted, your pillows are calling your name, and you’re ready for a few precious hours of sleep. But then, it starts—a tickle in the back of your throat that quickly turns into a persistent, hacking cough. You reach for the bedside drawer, searching for a cough drop to find some relief so you can actually rest. But as your hand hovers over the bag, a nagging question stops you: "Do cough drops decrease milk supply?"
If you’ve ever found yourself scrolling through breastfeeding forums at midnight while nursing a cold, you are not alone. When you are a breastfeeding parent, every single thing you put into your body feels like it comes with a footnote of potential side effects for your baby or your output. The "mom cold" is a unique kind of challenge because you don’t get a sick day, and you’re often hesitant to take medication for fear of "drying up" the liquid gold you’ve worked so hard to produce.
In this article, we are going to dive deep into the relationship between cough drops and lactation. We’ll look at the specific ingredients that might cause a dip in supply, which options are generally considered safe, and how you can manage cold and flu symptoms without compromising your breastfeeding journey. Our goal is to empower you with the knowledge you need to feel better because, at Milky Mama, we believe that taking care of yourself is a vital part of taking care of your baby. You’re doing an amazing job, and you deserve to feel supported through every sniffle and cough.
To answer the question of whether cough drops decrease milk supply, we first have to look at what is actually inside those little lozenges. Most cough drops are a combination of sugar, flavorings, and an active medicinal ingredient designed to soothe the throat or suppress a cough.
While many people view them as "candy with a purpose," some contains ingredients that can have systemic effects. When we talk about breastfeeding safety, we are looking at two things: whether the ingredient passes into the breast milk and affects the baby, and whether the ingredient interferes with the hormones responsible for milk production.
The most common active ingredient in cough drops is menthol. Menthol provides that cooling, numbing sensation that makes a sore throat feel significantly better. It is derived from peppermint oil (Mentha piperita). This is where the concern for breastfeeding moms usually begins.
In the world of lactation, peppermint has a reputation. While a peppermint patty or a single cup of tea is unlikely to cause a problem for most people, high concentrations of peppermint (like those found in strong essential oils or very high doses of menthol) have been associated with a decrease in milk supply for some individuals.
There is some evidence, including animal studies and anecdotal reports from lactation professionals, suggesting that menthol can suppress the milk production of lactating mammary epithelial cells. For a mother with a robust supply, a few menthol cough drops over a day or two likely won't cause a noticeable change. However, if you are already struggling with a low supply or are in the early, sensitive weeks of establishing your milk, we recommend being a bit more cautious with menthol-heavy products.
Some "medicated" cough drops contain benzocaine, which acts as a local anesthetic to numb the throat. Because benzocaine is applied topically to the throat and has very low oral absorption into the bloodstream, maternal blood concentrations remain quite low. This means that only a negligible amount, if any, would make it into your milk. For many moms, benzocaine-based drops are an excellent alternative to menthol if they are worried about their supply.
If you flip over a bag of "natural" or "soothing" lozenges, you might see ingredients like pectin or glycerin. These are demulcents—substances that form a soothing film over a mucous membrane. These are generally considered very safe for breastfeeding parents because they work physically on the throat rather than chemically in the bloodstream.
Honey is another popular ingredient. While honey should never be given directly to an infant under one year old due to the risk of botulism, it is perfectly safe for a breastfeeding mother to consume. Your digestive system processes the honey, and there is no risk of botulism spores passing through your milk to the baby. A honey-based lozenge or even a spoonful of honey in warm water can be incredibly effective.
So, do they? The short answer is: usually not, but it depends on the ingredient and the quantity.
For the vast majority of breastfeeding parents, using standard cough drops for a few days to manage a cold will not cause a significant decrease in milk supply. The amount of menthol in a single drop is relatively small. However, if you are consuming half a bag of high-potency menthol drops every day, you might notice a dip.
It is also important to consider the "illness factor." Often, when a mom thinks a cough drop dried her up, it was actually the cold itself. Dehydration, the stress of being sick, decreased caloric intake because you don't feel like eating, and the body’s natural response to fighting an infection can all cause a temporary decrease in milk production.
If you do notice a dip while you’re sick, don't panic. This is often temporary. We always tell our moms that "every drop counts," and your body is incredibly resilient. Once you are hydrated and rested, your supply will typically bounce back. If you need an extra boost during recovery, reaching for something like our Emergency Brownies can provide the support you need while you get back on your feet.
While cough drops are generally low-risk, there are other over-the-counter cold medications that are much more likely to decrease milk supply. When you have a cough, you often have a runny nose or congestion too, and this is where you need to be careful.
If there is one thing to avoid while breastfeeding, it’s oral decongestants like pseudoephedrine (commonly found in "D" versions of cold meds behind the pharmacy counter) and phenylephrine.
Pseudoephedrine is a powerful vasoconstrictor. While it’s great at shrinking the blood vessels in your nose to stop a runny nose, it can also reduce blood flow to the mammary glands and interfere with prolactin levels. Some studies have shown that a single dose of pseudoephedrine can cause a significant, though often temporary, drop in milk supply—sometimes by as much as 24%.
If you are severely congested, a better alternative is often a nasal spray. Because nasal sprays work locally in the nose, very little of the medication enters your systemic circulation.
Ingredients like diphenhydramine (found in many "nighttime" cold and flu formulas) are often used to dry up secretions and help you sleep. While they don't have the same immediate impact as decongestants, they can occasionally cause a decrease in supply, especially if used repeatedly. They can also make both you and your baby very drowsy, which can interfere with nursing sessions.
If you need an antihistamine for allergies or cold symptoms, non-drowsy options like loratadine or cetirizine are generally preferred by lactation experts as they have less of an impact on supply and infant alertness.
We know how hard it is to parent while you’re under the weather. Breasts were literally created to feed human babies, and your body will prioritize your baby’s nutrition, but that doesn’t mean you have to suffer in silence. Here are some breastfeeding-friendly ways to manage your symptoms:
When you have a fever or a cough, you lose fluids faster than usual. Dehydration is a leading cause of a supply dip during illness. Plain water is great, but you might need something with a bit more punch to keep your electrolytes up and your supply steady. Our Lactation LeMOOnade™ is a fan favorite for sick days because it’s refreshing, hydrating, and contains ingredients to support lactation. If you prefer other flavors, Milky Melon™ or Pumpin Punch™ are also excellent choices.
For congestion and the "post-nasal drip" that often causes coughing, saline is your best friend. Saline nasal sprays or neti pots are 100% safe and very effective. You can also stand in a hot, steamy shower or use a humidifier. Steam helps loosen mucus so you can cough it up more easily without needing heavy suppressants.
If your cough is accompanied by a sore throat or body aches, acetaminophen and ibuprofen are the "gold standards" for breastfeeding safety. They have been studied extensively and only tiny amounts pass into breast milk—amounts far lower than what a baby would be prescribed directly for a fever. Avoid products containing aspirin or codeine unless specifically directed by your doctor.
Warm water with lemon and honey is a classic for a reason. The warm liquid soothes the throat, the lemon provides a tiny boost of Vitamin C, and the honey acts as a natural cough suppressant. You can also try gargling with warm salt water to reduce inflammation in the throat.
If you are worried that your cold or the medications you took have caused a dip, you can turn to herbal supports. At Milky Mama, we offer a variety of supplements tailored to different needs. For example, Pump Hero™ is designed to help support milk supply and is a great addition to your routine when you're feeling depleted.
Important Note: This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice before starting any new supplement, especially when you are ill.
Let’s look at a few real-world scenarios to see how this information applies to your daily life.
Scenario A: The Late-Night Tickle You’ve been coughing for an hour and can’t sleep. You have a bag of menthol cough drops.
Scenario B: The Total Congestion Shutdown You can't breathe through your nose, your throat is raw, and you're feeling miserable. You’re tempted to take a "Maximum Strength Nighttime Cold & Flu" syrup.
Scenario C: The Recovery Phase Your cold is finally over, but you notice you’re pumping an ounce or two less than usual.
At Milky Mama, we are particularly passionate about ensuring that Black breastfeeding moms have access to high-quality, culturally competent support. We know that systemic barriers can sometimes make it harder to find a provider who listens to your concerns about medication and lactation.
Whether you are dealing with a cold or a long-term supply challenge, we want you to know that your journey matters. We created our Virtual lactation consultations and our Online breastfeeding classes to ensure that every parent, regardless of their location, has access to IBCLC-backed information. Breastfeeding is natural, but it doesn’t always come naturally—especially when you’re sick and stressed.
When you are sick, your body is using a massive amount of energy to fuel your immune system. If you are also breastfeeding, your body is doing double duty. It is very common for breastfeeding parents to try and "push through," but this is the time to ask for help.
If you have a partner, friend, or family member available, ask them to handle the diaper changes and the rocking so you can sleep between nursing sessions. Remember, you can't pour from an empty cup—or an empty breast!
Focus on "comfort foods" that are also nutrient-dense. Soups, stews, and smoothies (though we don't recommend them specifically for increasing supply, they are great for hydration and nutrition!) can help you stay nourished when you don't have much of an appetite. If you're looking for a snack that hits the spot and supports your goals, our Salted Caramel Cookies are a delicious way to treat yourself during a tough week.
While we strive to provide the most accurate, evidence-based information, every body is different. What works for one mom might not work for another. If you have a history of significant supply issues, or if your baby is premature or has underlying health conditions, you should always be extra cautious.
If you’re ever in doubt about a medication, we recommend checking LactMed, a high-quality database from the National Library of Medicine, or reaching out to a professional. You can always book one of our Virtual lactation consultations to talk through your specific situation with an expert who understands the nuances of lactation and medication.
If you want to avoid menthol entirely just to be safe, there are plenty of other options:
Breastfeeding is a marathon, not a sprint. There will be days when you feel like a superhero, and there will be days when you feel like you're barely holding it together—especially when you're sick. We want to remind you that your well-being matters too. It’s okay to take the medication you need to function. It’s okay to rest. It’s okay to ask for help.
By choosing breastfeeding-compatible options like benzocaine drops, honey, and hydration-focused drinks like Lactation LeMOOnade™, you can manage your symptoms while protecting your milk supply.
1. Can I use Vicks VapoRub while breastfeeding? It is generally best to avoid applying strong mentholated rubs like Vicks directly to your chest. The strong scent can be overwhelming for a baby, may interfere with their ability to latch, and could potentially cause breathing irritation in very young infants if they are pressed right against it. If you need to use it, apply it to your back or use a child-safe version that is milder.
2. Is it safe to take honey for a cough while nursing? Yes! While infants under 12 months should never consume honey due to botulism risks, it is perfectly safe for a breastfeeding mother. The spores are not passed through breast milk.
3. Will my baby get "sleepy" if I take cough meds with dextromethorphan? Dextromethorphan (the "DM" in many cough syrups) is generally considered compatible with breastfeeding. Only very small amounts pass into the milk. However, you should always monitor your baby for unusual drowsiness or poor feeding, especially if they are a newborn.
4. How long does it take for milk supply to return after a dip from medication? If you experienced a dip due to a decongestant or heavy menthol use, your supply will typically begin to return within 24 to 48 hours after stopping the medication, provided you continue to hydrate and remove milk frequently (through nursing or pumping).
Navigating a cold while breastfeeding can feel like a minefield, but it doesn't have to be. While the question "do cough drops decrease milk supply" doesn't have a simple yes or no answer, being mindful of menthol and avoiding oral decongestants will put you on the right path. Remember, your body is doing something incredible, and being sick is just a small hurdle in your journey.
You are doing an amazing job, Mama. Don't let a cough or a cold discourage you. We are here to provide the products, education, and community you need to thrive. If you're looking for more tips or just a supportive group of people who "get it," come join us in The Official Milky Mama Lactation Support Group on Facebook. You can also follow us on Instagram for daily doses of encouragement and breastfeeding education.
Whether you need a box of Emergency Brownies to get through a supply dip or you want to learn the basics in our Breastfeeding 101 class, we’ve got your back. Take a deep breath (as best as you can with that stuffy nose!), grab a warm drink, and take care of yourself. Every drop counts, and so do you.
This product is not intended to diagnose, treat, cure, or prevent any disease. The information provided in this blog post is for educational purposes only and should not be taken as medical advice. Always consult with your healthcare provider or a certified lactation consultant before starting new medications or supplements while breastfeeding.