Many people take CBD to help with pain, worry, and trouble sleeping. At the same time, allergies may make you need a medicine like Claritin or Benadryl to stop sneezing and a runny nose. If you think about using both CBD and allergy medicine, you might ask if it is safe to take them at the same time. Key Balance LLC’s guide will explain how CBD works in your body, talks about common allergy medicines, looks at the possible risks and some good points of using them together, and gives tips to help you feel safe and well.
H2. What Is CBD and How Does It Work?
CBD is a natural substance found in the cannabis plant. It is one of the important parts of the plant that many people use for healing. Unlike THC, CBD does not make you feel high. It works by connecting with your body’s special system that helps control mood, sleep, hunger, and swelling. Many people choose different ways to use CBD, including oils, gummies, and CBD topical cream for targeted relief on the skin. When you take CBD, your body uses special helpers in the liver called cytochrome P450 enzymes to break it down. These same enzymes also work to break down many other medicines, including common allergy pills. Because CBD sometimes takes up some of the work of these enzymes, it can change the amount of another drug in your blood.
H3. How Do Allergy Medications Work?
If you worry about mixing different medicines, it really helps to know how allergy medicines work. Most allergy medicines come in two groups:
- Antihistamines: These block a chemical called histamine that your body makes during an allergy.
Some antihistamines, like diphenhydramine (Benadryl), can make you feel sleepy.
Others, like loratadine (Claritin), cetirizine (Zyrtec), and fexofenadine (Allegra), usually do not make you so sleepy.
- Decongestants: These help shrink the swollen blood vessels in your nose so you can breathe better.
A common decongestant is pseudoephedrine.
Each type of medicine acts in a different way. Knowing this helps us understand where CBD might have an effect.
H4. CBD and Liver Enzymes: The CYP450 Connection!
Because your body breaks down CBD using the cytochrome P450 enzymes, taking it with other drugs that need these helpers can change how fast they are broken down. This can lead to two different outcomes:
- Slower Breakdown: CBD may slow down the process for another drug. This causes more of that drug to stay in your blood and may increase side effects.
- Faster Breakdown: On rare occasions, CBD may speed up the process. This can make the other drug work less well.
Harvard Health has warned that mixing CBD with medicines that use the same liver pathway, like many allergy pills, may lead to extra sleepiness or other side effects. They say it is best to be careful and talk to your doctor before mixing these medicines.
H5. Interactions with Common Antihistamines!
Here is what we know about CBD and some common allergy pills:
Loratadine (Claritin):
- Studies at Drugs dot com show no known problems when you take CBD with loratadine.
- Loratadine mainly uses a different enzyme in the liver. This is why there is little risk.
Cetirizine (Zyrtec):
- Drugs dot com reports a moderate chance of interaction between CBD and cetirizine.
- Both of these can make you feel sleepy or tired. It is important to watch how you feel when you take them together.
Fexofenadine (Allegra):
- There are no reports of problems when CBD and fexofenadine are mixed together.
- Like loratadine, this medicine is processed in a different way in the liver.
Diphenhydramine (Benadryl):
- Mixing CBD with diphenhydramine may make you very sleepy.
- Some people, especially older adults, can feel extra dizzy or confused. This extra sleepiness may make accidents more likely.
H6. Interactions With Decongestants and Other Allergy Products!
If you use a decongestant like pseudoephedrine or phenylephrine, there is not much evidence that CBD changes how these work. Because decongestants are not mostly broken down by the cytochrome P450 enzymes, the risk is smaller. However, if you take a high dose of both CBD and a decongestant, watch for signs like a fast heartbeat or feeling jittery. Some allergy medicines like nasal sprays or cromolyn sodium work only in the nose. Because they are not absorbed widely in the body, they are unlikely to interact with CBD.
H7. Best Practices For Using CBD With Allergy Medicines!
You can help keep yourself safe if you decide to use CBD with allergy medicines. Try these simple tips:
- Talk to Your Doctor: Always tell your doctor before you add something new like CBD if you already take other medicines.
- Start With Low Doses: Try a small dose of CBD (around 5 to 10 milligrams) and see how your body reacts before you take your full dose.
- Take Your Doses Apart: Do not take CBD and your antihistamine at the same time. Waiting a few hours between them can reduce the chance of interaction.
- Write Down What You Take: Keep a simple diary of the doses you take and when you take them. This will help you and your doctor see any unusual changes.
- Choose Good Quality Products: Look for CBD products from trusted companies that show third party lab tests. These tests prove that the product is pure and the dose is right.
- Drink Water and Rest Well: Both CBD and allergy medicine can sometimes make you feel dry and tired. Drinking extra water and getting good sleep can help you feel better.
H8. When to Seek Medical Advice ?
If you notice any serious changes in how you feel, it is a good idea to speak with a healthcare professional. Contact your doctor if you have:
- Very strong sleepiness makes it hard to do daily tasks.
- A fast or pounding heart, chest pain, or dizziness when you stand up.
- Confusion or a hard time concentrating that does not go away with rest.
- Ongoing nausea or diarrhea that does not improve.
Your doctor can help by changing your allergy medicine dose, suggesting a different type of antihistamine, or giving you advice on how much CBD is safe for you.
H9. Conclusion!
In many cases, taking CBD with common second generation antihistamines like loratadine (Claritin) or fexofenadine (Allegra) is thought to be safe. Studies from Drugs dot com show that they do not usually interact in a significant way. However, using CBD with cetirizine (Zyrtec) may cause more sleepiness and using it with diphenhydramine (Benadryl) can make you even more tired and confused. Decongestants and nasal treatments usually do not have as big an interaction, but individual reactions can be very different.
