Can I Take Prolactin to Increase Milk Supply?

The short answer is that you cannot currently buy prolactin as an over-the-counter supplement or a standard prescription pill. While it might seem like the most logical fix for a low supply, taking pure prolactin is not a common medical practice for several reasons.

First, prolactin is a protein hormone. If you were to swallow it in a pill form, your digestive system would likely break it down before it ever reached your bloodstream. This is why many protein-based hormones, like insulin, must be injected rather than swallowed.

There have been clinical trials involving recombinant human prolactin (r-hPRL), which is a lab-made version of the hormone. These studies generally focus on people with a specific medical condition called prolactin deficiency, which can happen due to issues like Sheehan’s Syndrome (pituitary damage after severe postpartum hemorrhage). In these very specific, controlled medical settings, researchers have used injections to help increase milk volume. However, these treatments are not FDA-approved for general use and are not available to the public.

For the vast majority of parents, the goal isn't to "take" prolactin, but rather to encourage the body to release more of its own natural prolactin. We do this by understanding the biological triggers that tell the brain to keep that hormone flowing.

The Role of Dopamine in Milk Production

To understand how to increase prolactin, you have to understand its relationship with another chemical in your brain: dopamine. In the body, dopamine acts as a "prolactin inhibitor." This means that when dopamine levels are high, prolactin levels are kept low.

When you want to increase milk supply through medication, doctors sometimes look at drugs that are "dopamine antagonists." These are medications that block dopamine. When dopamine is blocked, the "brakes" are taken off the pituitary gland, and it can release more prolactin into your system.

Key Takeaway: You cannot buy prolactin over the counter. Instead, breastfeeding support usually focuses on naturally increasing your own prolactin or using specific medications that allow your body to release more of the hormone.

Medications That May Support Prolactin Levels

If you are working with a healthcare provider or a certified lactation consultant, they may discuss pharmaceutical options if natural methods haven't been sufficient. It is vital to remember that these should only be used under strict medical supervision.

Metoclopramide (Reglan)

This is a medication often used for digestive issues, but it is sometimes prescribed off-label to help increase milk supply. It works by blocking dopamine, which in turn may raise prolactin levels. However, it can have significant side effects, including a high risk of depression and anxiety. For many parents, especially those with a history of mood disorders, the risks may outweigh the benefits.

Domperidone (Motilium)

In some countries, like Canada or the UK, Domperidone is commonly used as a galactagogue (a substance that increases milk supply). Like Reglan, it blocks dopamine to boost prolactin. However, it is not currently FDA-approved for this use in the United States. There are concerns about potential cardiac side effects, so it is important to talk to a doctor about the legal and safety status of any medication in your specific location.

Why Medication Isn't Always the Answer

Drugs that increase prolactin only work if your prolactin levels are actually low. If your supply is low because of a poor latch, infrequent pumping, or a thyroid issue, taking a dopamine blocker might not help at all. Always address the root cause of the supply issue before turning to pharmaceutical interventions.

Natural Ways to Boost Prolactin

Your body is designed to release prolactin in response to specific physical cues. You can often see a significant impact on your supply just by leaning into these biological triggers.

Increase Breast Stimulation

The most effective way to raise prolactin naturally is through nipple stimulation. When your baby latches or when you use a high-quality pump, nerves in the breast send a direct message to the brain to release prolactin.

Frequent Nursing: Aim for 8 to 12 sessions in 24 hours.
Power Pumping: This mimics a baby's cluster feeding and can signal the body to ramp up production.
Check Your Latch: If the baby isn't removing milk effectively, the prolactin signal won't be as strong.

The Magic of Skin-to-Skin

Holding your baby skin-to-skin (often called Kangaroo Care) is one of the most powerful tools in your kit. This closeness triggers the release of both oxytocin and prolactin. It helps you relax, which is essential because high levels of stress hormones (like cortisol) can actually interfere with the "let-down" reflex and hormonal balance.

Nighttime Sessions

Did you know that prolactin levels are naturally higher during the night? While it is exhausting to wake up for middle-of-the-night feedings or pumping sessions, these sessions are often the most productive in terms of hormone stimulation. Missing these sessions frequently can signal to your body that it needs to make less milk.

Proper Breast Drainage

Your body produces a protein called Feedback Inhibitor of Lactation (FIL). When your breasts stay full of milk, FIL builds up and tells your body to slow down production. By frequently and thoroughly emptying your breasts, you remove this inhibitor, allowing prolactin to do its job more effectively.

Supporting Your Supply with Nutrition

While there isn't a "prolactin pill," many parents find that certain foods and herbs support their overall lactation wellness. At Milky Mama, we focus on nourishing the body so it has the resources it needs to produce milk.

Our Pumpin Punch™ lactation drink mix is a popular hydration option that includes lactation-supportive ingredients without using harsh chemicals. Staying hydrated is a foundational part of milk production. When you are dehydrated, your body may struggle to maintain the fluid volume needed for a robust supply.

We also offer treats like our Emergency Lactation Brownies, which are formulated with ingredients traditionally used by breastfeeding families, such as oats and brewer's yeast. While these are not "prolactin" in a jar, they provide the caloric and nutritional support that many moms find helpful during growth spurts or when they feel their supply dipping.

Action Steps for Supporting Prolactin

Prioritize skin-to-skin contact for at least 20 minutes a day.
Ensure you are removing milk at least 8 times in a 24-hour period.
Incorporate a nighttime feeding or pumping session to take advantage of naturally high prolactin levels.
Focus on hydration and nutrient-dense snacks to support your energy levels.

Factors That Can Lower Your Prolactin

Sometimes, increasing supply isn't just about what you add; it’s about what you remove. Certain factors can unintentionally suppress your prolactin levels or interfere with its ability to work.

Certain Birth Control Methods

Contraceptives that contain estrogen (like "the pill" or certain patches) are known to potentially decrease milk supply. Estrogen can interfere with the way prolactin signals the breast tissue. If you need birth control while breastfeeding, many providers recommend progestin-only options (like the "mini-pill" or certain IUDs), as these are less likely to impact your hormone balance.

Smoking and Alcohol

Smoking has been linked to lower prolactin levels and earlier weaning. Similarly, while an occasional drink is generally considered okay by many experts, excessive alcohol can inhibit the let-down reflex and may lead to a decrease in milk production over time.

Stress and Exhaustion

While it is almost impossible to avoid stress as a new parent, chronic high stress can be a supply killer. Stress doesn't necessarily "stop" the production of prolactin, but it can severely inhibit the release of oxytocin. Since oxytocin is needed to actually "push" the milk out of the glands (the let-down reflex), the milk stays stuck in the breast. This leads to the buildup of FIL (Feedback Inhibitor of Lactation), which then tells the body to make less prolactin.

Medical Conditions

In some cases, a low supply is rooted in a medical issue. Hypothyroidism, Polycystic Ovary Syndrome (PCOS), and retained placenta fragments can all disrupt the delicate hormonal balance required for lactation. If you are doing "everything right" and still struggling, it is time to consult a healthcare provider for blood work.

Understanding Galactagogues

"Galactagogue" is a fancy word for any substance that helps initiate or increase milk production. These can be pharmaceutical (like the medications mentioned earlier) or herbal.

Many cultures have used herbs for centuries to support breastfeeding. Common herbs include:

Moringa: Often praised for its high nutritional content and potential to support supply.
Blessed Thistle: Frequently used in combination with other herbs to support lactation.
Alfalfa: A nutrient-rich plant that provides vitamins and minerals essential for nursing parents.
Goat's Rue: Often recommended for parents who have concerns about mammary tissue development.

Our Pumping Queen™ supplement and Lady Leche™ supplement utilize blends of these ingredients to support your body's natural processes. We choose to avoid certain ingredients that can have unwanted side effects, focusing instead on herbs that have been used safely by generations of breastfeeding families.

This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.

The Importance of Professional Support

If you are worried that your prolactin levels are low, the best first step is to seek out professional help. A Certified Lactation Consultant breastfeeding help page can help you connect with expert support, while a consultation can observe a feeding, check your pump settings, and help you determine if your baby is actually getting enough milk.

Many parents believe they have a low supply when they are actually experiencing "perceived low supply." This happens when things like "soft" breasts or shorter nursing sessions make you feel like the milk is gone, even though your baby is growing and thriving. An IBCLC can help you read your baby's cues—like wet and dirty diapers and weight gain—to provide the reassurance you need.

If there is a true supply issue, the consultant can work with your doctor to see if blood tests are necessary. A simple blood test can check your prolactin levels, thyroid function, and iron levels to see if there is a physiological reason for the struggle.

How Pumping Affects Prolactin

For many parents, pumping is a necessity, whether they are returning to work or building a "stash." However, the way you pump can affect how much prolactin your brain releases.

The brain's response to a pump is often slightly less robust than its response to a baby. To make up for this, it is important to ensure your pump fits properly. If your flanges (the plastic shields) are the wrong size, they can cause pain or fail to stimulate the breast tissue correctly. Pain can inhibit the let-down reflex, creating a cycle of low output.

Using techniques like "hands-on pumping" (massaging the breast while the pump is running) can help empty the breast more completely. As we’ve learned, an empty breast is the best signal to the brain to keep the prolactin levels high and the milk production moving.

Cultivating a Supportive Environment

Breastfeeding is natural, but it doesn't always come naturally. The pressure to "just know" what to do can be overwhelming. Part of supporting your hormonal health is making sure you feel safe and supported.

Representation matters, and seeing other parents navigate these same hurdles can be incredibly empowering. Whether you are breastfeeding in public—which is legal in all 50 states, covered or uncovered—or pumping in a breakroom at work, you deserve to feel confident.

When you are relaxed and feel supported by your community, your body is more likely to stay in a "rest and digest" state, which is the perfect environment for prolactin to thrive. If you want extra structure, the Breastfeeding 101 course can be a helpful next step.

A Note on Well-being: Your mental health is just as important as your milk supply. If the stress of trying to increase prolactin is taking a toll on your bond with your baby or your own happiness, it is okay to adjust your goals. You are doing an amazing job, no matter how your baby is fed.

Conclusion

While you can't take a simple prolactin pill to instantly fix your milk supply, you have many tools at your disposal to support your body's natural hormone production. Prolactin is highly responsive to the physical act of nursing and pumping, skin-to-skin contact, and your overall nutritional state. By focusing on frequent milk removal and caring for your own wellness, you are giving your body the best chance to produce the milk your baby needs.

Focus on frequent breast stimulation through nursing or pumping.
Prioritize nighttime sessions when prolactin is naturally at its peak.
Address underlying issues like latch or flange fit with an IBCLC.
Use supportive nutrition and hydration to keep your energy up.

The journey of breastfeeding is unique for every parent. Remember, every drop counts, and your well-being matters just as much as your milk supply.

If you are looking for more support, the Milky Mama community is here for you with educational resources and products designed by experts who understand the "real life" side of lactation.

FAQ

Can a doctor prescribe prolactin injections for low milk supply?

Injections of recombinant human prolactin are generally only used in clinical research settings or for rare medical conditions like Sheehan's Syndrome. They are not a standard treatment for typical low milk supply in the United States and are not available for general prescription.

Does pumping at night really increase prolactin?

Yes, prolactin levels naturally rise during the night and early morning hours. By nursing or pumping between midnight and 5:00 AM, you are stimulating the breast when your hormone levels are at their peak, which can help maintain or increase your overall daily supply. If you are working through a pumping routine, you may also find our How to Up My Milk Supply Exclusively Pumping guide useful.

Are there any foods that contain prolactin?

No, prolactin is a hormone produced by the human pituitary gland, so it isn't found in food. However, certain foods known as galactagogues may support the body's natural ability to produce milk or help the body stay nourished and hydrated so it can function optimally. If you want a broader overview of supply changes, read our guide on whether breast milk supply fluctuates.

Can high stress stop my body from making prolactin?

While stress might not completely stop prolactin production, it can interfere with the "let-down" reflex caused by oxytocin. When milk isn't released effectively due to stress, the breast remains full, which signals the brain to slow down milk production and eventually lower prolactin levels. If you want more day-to-day support, consider exploring the Milky Mama lactation snacks collection for convenient options.

This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.

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Can I Take Prolactin to Increase Milk Supply?

Table of Contents

Introduction

What Exactly is Prolactin?

Can I Take Prolactin to Increase Milk Supply?

The Role of Dopamine in Milk Production