Drug & supplement interaction

Acai + Tofacitinib

Tofacitinib brand names: Xeljanz, Xeljanz XR.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Sep 20, 2026

The bottom line No known interaction

We found no known interaction between Acai and Tofacitinib in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Acai and Tofacitinib

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Tofacitinib and Acai in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Acai safety at a glance

Acai overall Use caution Acai is generally well tolerated as a food, but supplement quality and high-dose effects are not well studied.

Pregnancy Use caution Acai as a food is likely fine, but concentrated supplements have not been studied in pregnancy, so it is best to use caution.

Breastfeeding Use caution There is not enough safety information on acai supplements during breastfeeding, so caution is advised.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Tofacitinib and Acai? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Tofacitinib

Interactions in our licensed database are recorded against drug classes, not just single drug names. Tofacitinib is filed under 4 classifications — including cytochrome p450 2c19 (cyp2c19) substrates, immunosuppressants, cytochrome p450 3a4 (cyp3a4) substrates. Acai has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Tofacitinib’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Acai Does Interact With Other Medications

Acai has 86 moderate known drug interactions in our database — Tofacitinib isn’t one of them. If you take anything else, check it against the full list below.

Moderate 86 No known interaction 2,744 (incl. Tofacitinib)

Taking anything else?

Check Another of Your Medications Against Acai

Covers the 2,830 medications we’ve checked against Acai. Pick one to open its full report.

What to actually watch for

What Tofacitinib’s Own FDA Label Lists

This is not an interaction — none of it involves Acai. These are the most notable effects listed in the ADVERSE REACTIONS section of Tofacitinib’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 6 of them are worth acting on rather than waiting out — marked below.

Low blood sugar Worth acting on
Blood clots Worth acting on
A low white blood cell count Worth acting on
Liver problems Worth acting on
A higher chance of infection Worth acting on
An allergic reaction Worth acting on
Joint pain mentioned in 29.0% of FDA reports for Tofacitinib
Headache mentioned in 7.3% of FDA reports for Tofacitinib
Diarrhea
A skin rash

From the ADVERSE REACTIONS section of the FDA label for Tofacitinib. Read the label on DailyMed › Where a percentage is shown, it is the share of 185,980 voluntary FDA FAERS reports for Tofacitinib that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Acai’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Acai side to compare — that is a limit of the record, not a statement that Acai has no side effects.

Everything else you take

See Every Supplement That Interacts With Tofacitinib

This page covers Acai only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tofacitinib page lists 184 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Active Hexose Correlated Compound (ahcc) (moderate).

By severity: 3 major · 143 moderate · 38 minor.

From our pharmacist’s overview on the Tofacitinib page

“Supplements deserve genuine care alongside tofacitinib (Xeljanz, Xeljanz XR), a medicine that deliberately dials down the immune system to control conditions like rheumatoid arthritis and ulcerative colitis. Most of the interactions on this page run through the liver enzymes that clear the drug, meaning an herb can push its blood level…”

Reviewed by 2 · Jul 18, 2026

Open the Tofacitinib interaction page

One more smart check

Taking Acai as Part of a Dietary Supplement Product? Check It for Interactions

We hold 3,313 real supplement products containing Acai, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Acai. Even though Acai itself has no known interaction with Tofacitinib, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Acai and Tofacitinib Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Acai

Top 10%

#103 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Tofacitinib

Steady interest

#1,746 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?

Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Acai reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Acai and Tofacitinib records this page draws on were last updated June 22, 2026.
What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Acai

What is Acai?

Antioxidant support
Weight loss
Energy and vitality
Heart health
General wellness ('superfood')

Acai is a nutritious Amazonian berry rich in antioxidants and healthy fats, and it is fine to enjoy as a food. However, strong human evidence is lacking for the bold health claims often attached to acai supplements, including weight loss and disease prevention.

Euterpe oleracea · Arecaceae · Fruit (berry) and its pulp · Juice, frozen pulp, smoothie packs, powder, capsules, tablets

An interaction check asks whether these two react with each other — it does not ask whether Acai is a good idea for someone in your situation. Here is what our Acai record says about it on its own.

Acai: dosing

There is no officially established or standardized dose for acai. Amounts used in studies and products vary widely depending on the form (juice, pulp, powder, or capsule).The best approach is to follow the directions on the product label and not exceed the recommended amount.

From our Acai monograph — the full record covers uses, side effects and every documented interaction.

Read the full Acai monograph & all interactions

Medication

About Tofacitinib

What Is Tofacitinib Used For?

Brand names: Xeljanz, Xeljanz XR

Tofacitinib is used alone or with other medications to treat rheumatoid arthritis (condition in which the body attacks its own joints causing pain, swelling, and loss of function) in adults who are unable to take or did not respond to one or more tumor necrosis factor (TNF) inhibitor medication(s). It is also used to treat psoriatic arthritis (a condition that causes joint pain and swelling and scales on the skin) in adults who are unable to take or did not respond to or tolerate one or more TNF inhibitor medication(s). Tofacitinib is used to treat ulcerative colitis (a condition which causes swelling and sores in the lining of the colon [large intestine] and rectum) in adults who are unable to take or who did not respond to one or more TNF inhibitor medication(s). It is also used to treat polyarticular juvenile idiopathic arthritis (PJIA; a type of childhood arthritis that affects five or more joints during the first six months of the condition, causing pain, swelling, and loss of function) in children 2 years and older who are unable to take or who did not respond to one or more TNF inhibitor medication(s). Tofacitinib is in a class of medications called Janus kinase (JAK) inhibitors. It works by decreasing the activity of the immune system.

See full Tofacitinib drug information

Keep checking

Other Drugs & Acai

Browse every other medication we’ve checked against Acai — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major

86Moderate

0Minor

2,743No known interaction

86 Moderate 2,743 No interaction

Moderate

86 interactions

Showing 60 of 86 moderate interactions — see all 86 on the Acai page.

No interaction 2,743 drugs checked — show the list

We also checked Acai against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,743 medications checked with no known interaction — see the full Acai list.

See the full Acai interactions page

See every supplement checked against Tofacitinib, ranked by severity

Evidence & sources

Acai References

The 2 references that drive our Acai monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

Udani JK, Singh BB, Singh VJ, Barrett ML. Effects of acai (Euterpe oleracea Mart.) berry preparation on metabolic parameters in a healthy overweight population: a pilot study. Nutr J 2011;10:45.
de Liz S, Cardoso AL, Copetti CLK, et al. Açaí (Euterpe oleracea Mart.) and juçara (Euterpe edulis Mart.) juices improved HDL-c levels and antioxidant defense of healthy adults in a 4-week randomized cross-over study. Clin Nutr. 2020;39(12):3629-3636. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Acai and Tofacitinib Together: Common Questions

Is it safe to take Acai with Tofacitinib?

We do not list a known interaction between Acai and Tofacitinib. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.

How was the Acai and Tofacitinib combination checked?

Interactions in our licensed database are recorded against drug classes. Tofacitinib is filed under 4 classifications, and Acai has documented interactions with 1 drug class — none of Tofacitinib's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.

Does Acai interact with any other medications?

Yes. Acai has 86 documented drug interactions in our database — Tofacitinib is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Does Tofacitinib interact with any supplements?

Yes. Tofacitinib has documented interactions with 184 supplements in our database — Acai is not one of them. The Tofacitinib interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Acai monograph Uses, safety profile, and every drug interaction in one place Tofacitinib drug information The full plain-English guide to this medication Tofacitinib supplement interactions Every supplement checked against Tofacitinib, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Tofacitinib and Acai?

Our pharmacists answer your medication & supplement questions — free.

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.