Pau d'Arco Tea Side Effects: Safety Guide & Precautions

If you want clear facts on pau d'arco tea side effects, let’s get right to it. Julien, the co-founder of Taheebo Wellness Tea, used pau d’arco during his own recovery from advanced cancer. This tea was a steady part of his routine. We focus on clear information and safety because we know these details matter when you are focusing on your health.

Common Side Effects

Pau d’arco comes from the inner bark of the Tabebuia tree. People have used it for generations in South America. Today, many people drink it for pau d'arco tea benefits tied to immune support, inflammation support, and digestive support. It is a strong herb, so it makes sense to start slow.

Most people do fine with pau d’arco when they keep the serving moderate. Still, side effects can happen.

The most common ones are:

• Nausea, especially if you drink it on an empty stomach
• Loose stools
• Dizziness or lightheadedness

If this happens, make a lighter cup. Drink it with food. Or take a short break. If you notice hives, swelling, or trouble breathing, stop right away and get medical help.

Risks of High Doses

Most problems show up when people take too much, drink it too often, or mix it with something that may interact with it.

Pau d’arco contains natural compounds, including lapachol. That matters because high amounts may raise the risk of side effects.

High doses have been linked with:

• Strong nausea or vomiting
• Diarrhea and cramping
• Vertigo
• Bleeding issues

The bleeding risk matters most. Animal research also raises concerns at very high exposures. The main takeaway is simple. Do not overdo it.

Pau d'Arco and Candida Reactions

Not everyone reading this is here for general wellness. Many people search for pau d'arco side effects because they are using it for fungal balance, and that comes with a couple of extra things worth knowing.

When people start pau d'arco tea for this reason, some notice temporary digestive changes: stomach discomfort, shifts in digestion, or fatigue. This is a common report in the early days and usually settles as your body adjusts.

Starting slowly matters even more here. If this is why you are drinking pau d'arco, read our Candida guide for more on how to use it for this specific purpose.

Who Should Avoid Pau d'Arco?

Some people should avoid pau d’arco or talk to a clinician first.

• Pregnant or breastfeeding women should avoid it because we do not have enough human safety data
• People taking blood thinners or antiplatelet drugs should use caution because pau d’arco may affect clotting
• Anyone preparing for surgery should stop at least two weeks before the procedure and tell the surgical team about supplement use. If you want more detail on safety during treatment, read our Pau d'Arco and Cancer: Science, Benefits, and Safety Guide

If you have a bleeding disorder, this tea may not be a good fit. We also do not recommend it for children because safety data is limited. If you want more context on the research, including safety studies like the 2023 human safety trial, read our comprehensive Pau d'Arco research guide.

Why Quality and Grind Matter

The form of the bark matters more than most articles explain.

Some products look like chunky wood chips. Some use outer bark. Some contain mixed material. That can lead to a weaker tea and uneven results. It can also push people to use more than they should.

Our Classic style uses pure inner bark in a Fine Grind. The smaller cut gives the bark more surface area. That helps water extract the tea more fully. The result is a stronger brew from the same amount of bark.

We offer two options:

• Classic Fine Grind: stronger and more concentrated
• Coarse Cut: lighter and smoother

We also third-party test our bark and keep it pure, with no fillers.

How to Brew Pau d'Arco Tea

Here is the method we use at home:

• Add 3 tablespoons of pau d’arco inner bark to 4.5 cups of water
• Bring it to a boil
• Boil for 25 minutes
• Strain it, let it cool a bit, and drink

If you are new to pau d’arco, start with a smaller serving. A simple approach: begin with one cup a day and add a half cup each week until you reach the amount that works for you. You can also start with Coarse Cut if you want a lighter cup.

A few simple habits can help lower the chance of side effects:

• Do not add several new supplements at the same time
• Stop if you notice unusual bruising or bleeding
• Take breaks if needed

If you want to explore our sourcing and the two cuts, you can find everything at Taheebo Wellness Tea.

Frequently Asked Questions

Is Pau d'Arco tea safe for daily use?

Many people drink one to three cups a day. Start with one cup first.

Can I drink this tea if I am on medication?

Talk to your doctor first, especially if you take blood thinners.

Is Taheebo tea safe for children?

We do not recommend it for children.

Does pau d'arco cause reactions if I'm using it for candida?

Some people notice temporary digestive changes or fatigue when starting. It usually settles as your body adjusts. See our Candida guide for more detail.

Please consult with a qualified healthcare provider before beginning any new herbal supplement regimen, especially if you have existing health conditions or take medications.

Written by Julien Griffault, Co-Founder, Taheebo Wellness Tea — Published April 2026 | Last updated August 2026