Allergy Medicine in Pregnancy: What Is Safe and What to Avoid

Dealing with allergies is frustrating enough, but deciding what you can safely take during pregnancy can make the situation even more confusing. The right allergy medicine for pregnant women can provide much-needed relief, although the choice isn’t always easy. Different medicines contain different active ingredients, and their suitability may vary depending on your trimester and individual health needs. That’s why many expectant mothers have questions about using allergies pills while pregnant instead of reaching for their usual medication. This article explains which allergy treatments doctors commonly recommend, which ones are best avoided, and practical ways to keep allergy symptoms under control throughout pregnancy.

Can You Take Allergy Medication While Pregnant?

Yes, some allergy medications can be taken during pregnancy, but it’s important to use them only with your doctor’s approval. Antihistamines such as cetirizine (Zyrtec) and loratadine (Claritin) are commonly considered safe, while drug-free saline nasal sprays are also a good option for relieving nasal congestion. Avoid taking decongestants or combination cold and allergy medicines unless your doctor specifically recommends them (1).

Is It Safe to Skip Allergy Medication When Pregnant?

As the saying goes, prevention is the best medicine. So, the best way is to stay away from the cause of them and take preventive measures. Of course, you can’t control certain allergies such as pollen allergies. However, you can reduce its impact by wearing a mask (2). In other cases, you can take preventive measures to make your home allergy-proof.

It is always better to consult with your doctor. Depending on the severity of your symptoms your doctor will prescribe the medication you should take. If your symptoms are light, then your doctor may recommend alternative treatments.

What Kind of Allergy Medicine Is Safe During Pregnancy?

If you’re wondering, “What allergy medicine can I take while pregnant?” the answer depends on the type of medicine, the severity of your symptoms, and your trimester. Although no medication is entirely risk-free during pregnancy, certain oral antihistamines, including chlorpheniramine and cetirizine, have been widely studied and are generally regarded as safe when used as directed by a healthcare professional (3). Unless specifically advised otherwise, it’s best to avoid using allergy medicines during the first trimester, when your baby’s organs are developing rapidly. Seeking medical advice before taking any treatment can help ensure the most appropriate option for both you and your baby.

Below are some important points to keep in mind when taking allergy medicines during pregnancy:

1. Over-the-Counter (OTC) Antihistamines

These allergy tablets are safe to use during pregnancy as long as you use them as directions. Some of these OTC allergy tablets during pregnancy include loratadine, cetirizine, diphenhydramine (4). 

2. Decongestants When Combined With Antihistamines

Since there are not enough evidence supporting their safety, it’s better to avoid antihistamines nasal spray, and other decongestants combined with antihistamines.

Which Medicated Nasal Sprays Can You Use?

You can opt for nasal sprays instead of tablets during pregnancy. Cromolyn sodium or steroid allergy nasal sprays are safe for pregnancy as the solution usually doesn’t travel across your body (5).

Can You Take Allergy Shots when Pregnant?

Yes, you can usually continue allergy shots (allergen immunotherapy) during pregnancy if you were already receiving them before becoming pregnant and are tolerating them well. However, doctors generally do not recommend starting allergy shots during pregnancy because of the small risk of a severe allergic reaction (6). Always discuss your treatment plan with your doctor to ensure it is safe for you and your baby.

How to Relieve Allergy Symptoms Naturally?

Whether your allergy symptoms are mild or severe, it is best to try relieving them naturally in addition to your prescribed medication. Below are a few alternatives allergy remedies during pregnancy (7):

• Saline spray: Saline spray, commonly known as saltwater, can relieve your nasal congestion without causing any mess or harm.
• Limit your outdoor activities: If pollen or other outdoor allergens are the culprits behind your allergy, then it would be a smart choice to limit your outdoor activities.
• Move your body: Exercise or yoga can be your best to relieve your nasal congestion. Consult with your obstetrician about the exercises you can perform in addition to the allergy pills while pregnant.
• Keep indoor air clean: Close windows during peak pollen season, use an air purifier with a HEPA filter if possible, and clean surfaces regularly to minimise exposure to allergens such as pollen, dust, and pet dander (2).
• Shower and change clothes after being outdoors: Taking a shower and changing into clean clothes after spending time outside can help prevent allergens from spreading inside your home and reduce ongoing exposure.

When to Consult a Doctor?

Most allergy symptoms during pregnancy are mild and can often be managed with simple lifestyle changes or medicines recommended by your doctor. However, persistent, worsening, or unusual symptoms may require prompt medical evaluation to ensure both your health and your baby’s well-being. Seek medical advice if you experience any of the following:

• Your allergy symptoms last for several days or continue to worsen despite home care or prescribed treatment.
• You experience wheezing, shortness of breath, chest tightness, or difficulty breathing.
• You develop swelling of the face, lips, tongue, or throat, or notice widespread hives after exposure to an allergen or taking a medication.
• You’re considering a new allergy medicine during pregnancy or have concerns about the safety of your current treatment.

FAQs

1. Is it safe to take allergy medicine during the first trimester?

The first trimester is a critical stage of fetal development, so medications should only be taken when clearly needed and recommended by a healthcare professional. Avoid starting any new allergy medicine without medical advice during this period.

2. Can allergy medicine affect my baby?

When taken as prescribed, many pregnancy safe allergy medicine have not been associated with an increased risk of birth defects. However, taking unsuitable medications or exceeding the recommended dose may increase the risk of complications.

3. Can I take herbal remedies instead of allergy medicine during pregnancy?

Not necessarily. Many herbal supplements have not been adequately studied for safety during pregnancy and may not be safer than conventional medicines. Always consult your doctor before using any herbal or natural products.

Questions about allergy medication and pregnancy are common, as the safety of different medicines can vary depending on the trimester and the active ingredient. Ideally, you should say no to unnecessary medications. Taking precautions and following preventive measures is always recommended. But if your allergy symptoms are unbearable and making you uncomfortable, then you might have to rely on some medication. When taken under proper medical guidance, antiallergics are safe during pregnancy.

Also Read: 

Pregnancy Supplements
Medicines to Avoid in Pregnancy
Taking Painkillers while Pregnant
Medicines to take during Pregnancy

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Sources References

1. Mayo Clinic – Allergy medications and pregnancy: What’s safe?

2. Asthma and Allergy Foundation of America – Pollen Allergy

3. American College of Obstetricians & Gynecologists – What medicine can I take for allergies while I’m pregnant?

4. PubMed Central – A review of antihistamines used during pregnancy

5. PubMed – Treatment of allergic rhinitis during pregnancy

6. American College of Allergy, Asthma & Immunology – Pregnancy and Allergy

7. Cleveland Clinic – Home Remedies and Prevention Tips for Seasonal Allergies