Ivermectin During Pregnancy and Breastfeeding: Is It Safe?

Manoj Kumar - B.Pharmacy

Published : Nov 12, 2025

Ivermectin is a widely used antiparasitic medicine that treats infections caused by worms, mites, and some skin parasites.

It’s often prescribed for conditions such as scabies, strongyloidiasis, and other parasitic worm infections.

However, one common question among expecting or nursing mothers is: Can I take Ivermectin during pregnancy or while breastfeeding?”

Let’s understand what research and doctors say about its safety, risks, and precautions during these sensitive stages.

Can Ivermectin Be Taken During Pregnancy?

Oral Ivermectin tablets, which are an effective agent against harmful worms and parasites, play a great role in managing infections caused by them. And, ensuring its safe use is a vital task when using it during pregnancy or feeding a baby. 

What Studies Suggest

According to medical studies and WHO data, Ivermectin is generally avoided during pregnancy, especially in the first trimester.

Animal studies have shown possible harmful effects on unborn babies when given in very high doses.

Though these effects haven’t been proven in humans, doctors prefer caution.

There isn’t enough reliable evidence to prove that Ivermectin is completely safe for pregnant women, so most doctors avoid prescribing it unless necessary.

When Doctors Might Consider It

If a parasitic infection poses a serious risk to the mother’s health and no safer alternative exists, a doctor may decide that the benefit outweighs the potential risk.
For example:

Severe strongyloidiasis can spread throughout the body.

Scabies outbreaks are not responding to topical treatments.

Intestinal worm infestations can cause anaemia or malnutrition.

In such cases, treatment may be given only under strict medical supervision, with close monitoring.

FDA Pregnancy Category

In the U.S., Ivermectin is classified as Pregnancy Category C by the FDA.

Animal studies have shown potential harm to the fetus, but no well-controlled human studies exist.

The drug should be used only if the potential benefit justifies the risk.

So, self-medication during pregnancy should be strictly avoided.

Ivermectin and Breastfeeding: What You Should Know

Does Ivermectin Pass Into Breast Milk?

Yes, small amounts of Ivermectin can pass into breast milk.

However, the amount is generally very low and unlikely to harm a breastfeeding infant when used at prescribed doses.

According to the Centres for Disease Control and Prevention (CDC), a single dose of Ivermectin in lactating women hasn’t been shown to cause side effects in infants.

Still, most doctors recommend avoiding Ivermectin during the first week after delivery, when the baby’s organs are still developing rapidly.

When It May Be Used Safely

Doctors may allow Ivermectin use while breastfeeding if:

• The infection is severe (e.g., scabies or strongyloidiasis)

• No alternative medicine works

• The baby is older than one week

In such cases, mothers should:

• Feed the baby right before taking the dose.

• Wait several hours before the next feeding (to reduce drug transfer in milk)

Monitoring the Baby

If Ivermectin is used during breastfeeding:

• Watch for signs of drowsiness, feeding problems, or diarrhoea in the infant.

• Report anything unusual to your paediatrician immediately

Usually, these effects are rare, but monitoring ensures safety.

Potential Risks & Side Effects to Consider

While Ivermectin is safe for most adults, some may commonly face side effects of Ivermectin during its use. So, due to this, pregnant women and breastfeeding mothers need extra caution.

Possible side effects in mothers include:

• Mild nausea, vomiting, or dizziness

• Skin rash or itching

• Temporary changes in liver enzymes

• Rare allergic reactions

Possible risk (theoretical) for babies:

• Exposure to small amounts of the drug in breast milk (though minimal)

• Risk of underdeveloped nervous system exposure (mainly in premature infants)

Hence, always consult your gynaecologist or paediatrician before taking Ivermectin. Also, beware of possible interactions for Ivermectin in case you are suggested to use it.

Safer Alternatives During Pregnancy

In many cases, doctors may suggest topical or alternative antiparasitic medicines that are considered safer during pregnancy.

For instance, for scabies, a cream containing permethrin 5% is usually recommended because it is considered safe in all trimesters and works effectively when applied externally.

In cases of intestinal worm infections, doctors may prescribe Albendazole tablets after the first trimester, but only under medical supervision and when necessary.

For lice infestations, topical options such as benzyl benzoate or malathion lotions are preferred, since they act on the skin surface and have minimal systemic absorption.

However, it’s important to remember that these medicines should be taken only under a doctor’s advice. And, for comparing the efficiency and safety, you can review a blog like Ivermectin vs. Albendazole, which will help you understand these drugs better. 

Self-medicating during pregnancy can be risky for both the mother and the baby, so professional guidance is essential to ensure safety and proper dosage.

Important Precautions for Mothers

1. Never self-medicate during pregnancy or breastfeeding, and you must view our safety guide related to Ivermectin use before using it. 

2. Consult a doctor if you suspect a parasitic infection, many cases can be treated safely with topical or delayed therapy.

3. If treatment is essential, follow your doctor’s exact dose and schedule.

4. Avoid herbal or online “ivermectin” tablets from unknown sources, these may be counterfeit or contaminated.

5. Inform your doctor if you’re taking other medicines (like antibiotics, antifungals, or supplements).

Pharmacist’s Advice

Ivermectin is an effective antiparasitic, but it should be handled carefully during pregnancy and breastfeeding.
Always seek medical guidance; even one tablet can affect your baby if misused.
For mild infections, delay treatment or choose safer topical alternatives until your doctor approves Ivermectin.

Key Takeaways

Bottom Line

Ivermectin is a valuable antiparasitic medicine, but it is not the first choice during pregnancy or early breastfeeding.
If your infection is severe and your doctor recommends it, use only the lowest effective dose under supervision.

When it comes to your baby’s safety, always put medical guidance first.