Medicines to avoid if you have a peanut allergy

For those with peanut allergies, avoiding peanuts in food is a well-known necessity. However, peanut allergies can also extend beyond food, affecting the medications you take. It’s important to be vigilant and check the ingredients in all products, including medicines. This guide will help you understand which medicines might contain peanuts or peanut-derived ingredients and how to avoid them.

Key Takeaways

Some Medicines Have Peanut Oil

Certain medicines, like ear drops (e.g., Cerumol), eczema creams, and some contraceptive pills, can contain peanut oil. Always check the label or ask a doctor before using any medication.

Stay Safe by Being Careful

If you have a peanut allergy, always:

• Read the ingredient list carefully.

• Ask your doctor about safe alternatives.

• Carry an EpiPen in case of a serious reaction.

Know the Signs of a Reaction

Mild symptoms include itching and swelling, but a severe reaction (anaphylaxis) can cause trouble breathing or fainting. Use an EpiPen immediately and get emergency help if this happens.

Medicines Containing Peanut Oil

Many medications, including some over-the-counter and prescription drugs, contain a variety of ingredients that help with the delivery or preservation of the active substance. These can include allergens such as peanut oil, which may be used in the formulation of the medication. While refined peanut oil is generally considered less likely to trigger an allergic reaction, it can still pose a risk to those with severe peanut allergies.

If you have a peanut allergy, it’s crucial to carefully check the patient information leaflet for any medicine you are prescribed or purchase. Below are a few common types of medicines that may contain peanut oil or derivatives.

Contraceptive Pills to Avoid

While many types of contraceptive pills are available, some may contain ingredients that are unsuitable for individuals with peanut allergies. For example, the Desogestrel pill, a type of progestogen-only contraceptive (also known as the mini-pill), often contains soybean oil, which is unsuitable for those with peanut allergies. Some well-known brands of Desogestrel include Cerazette and Cerelle.

It’s essential to consult with your doctor if you’re unsure whether your contraceptive pill contains ingredients that could trigger an allergic reaction.

Over-the-Counter Ear Drops

Ear drops are often used to treat earwax build-up, but some brands may contain peanut oil as part of their formulation. Cerumol, for example, uses peanut oil to soften earwax. Even though you're not ingesting the oil, there is still a risk of contact with the skin, which can cause a reaction. Always check the ingredients of ear care products carefully if you have a peanut allergy.

Eczema Creams and Ointments

There is ongoing research into the link between eczema and peanut allergies. While no definitive connection has been established, eczema can sometimes trigger an allergic reaction to peanuts. Some eczema treatments, such as Dermovate cream, may contain arachis oil, which is derived from peanuts.

If you have eczema and a peanut allergy, it’s essential to be cautious when choosing topical treatments. Always check the ingredients and consider alternatives if the product contains any peanut-based components.

What is a Peanut Allergy?

A peanut allergy occurs when the body’s immune system mistakenly identifies proteins in peanuts as harmful. This triggers an allergic reaction, which can range from mild symptoms, such as itching or tingling in the mouth, to severe reactions like anaphylaxis.

If you experience symptoms such as hives, swelling in the face, throat, or tongue, difficulty breathing, or a drop in blood pressure, these are signs of anaphylaxis, a potentially life-threatening reaction. In such cases, immediate use of an EpiPen (adrenaline injection) is essential to stabilise the body until you can receive professional medical treatment.

What Should You Do if You Have an Allergic Reaction?

If you experience a mild allergic reaction, such as itching or swelling, use an antihistamine as recommended by your doctor. For severe reactions, especially those involving anaphylaxis, you should use an EpiPen immediately and seek emergency medical help.

Even if the product contains refined peanut oil (which has less allergenic potential), reactions can still occur unpredictably. Always carry your EpiPen and be vigilant about the medicines you use.

How to Stay Safe with a Peanut Allergy

1. Read all product labels: Whether for food, medications, or creams, always check the list of ingredients.

2. Consult your doctor: Before taking any new medication, ask your healthcare provider whether it contains any allergens, especially peanut oil.

3. Carry an EpiPen: Always have an EpiPen available, especially when trying new medicines or foods. It’s a life-saving device used to treat anaphylactic shock by delivering a dose of adrenaline.

4. Monitor your symptoms: If you experience any unexpected symptoms after using a medication, stop using it immediately and consult your doctor.

Final thoughts

While peanut allergies are commonly associated with food, they can also affect your choice of medication. Always be cautious and informed about the contents of your medicines, and consult your doctor if you have any doubts. With proper care and awareness, individuals with peanut allergies can avoid potential risks and manage their condition effectively.