Drug & supplement interaction

Terminalia Chebula + Glycerol Phenylbutyrate

Glycerol Phenylbutyrate brand name: Ravicti.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between Terminalia Chebula and Glycerol Phenylbutyrate 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. Additionally, although there is no interaction, the label for Glycerol Phenylbutyrate states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Terminalia Chebula and Glycerol Phenylbutyrate

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 Glycerol Phenylbutyrate and Terminalia Chebula 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.

Terminalia Chebula safety at a glance

Terminalia Chebula overall Use caution Generally used in traditional medicine, but human safety data are limited and quality of products varies.
Pregnancy Possibly Unsafe When used orally. One source warns against using Terminalia bellirica and Terminalia chebula during pregnancy; however, the reason for this warning is not descr... Read the full pregnancy detail
Breastfeeding Avoid Safety during breastfeeding is unknown, so it is best avoided.

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Glycerol Phenylbutyrate and Terminalia Chebula? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Glycerol Phenylbutyrate

Interactions in our licensed database are recorded against drug classes, not just single drug names. Glycerol Phenylbutyrate is filed under a single classification — oral drugs. Terminalia Chebula has documented interactions with 3 drug classes — the most serious being antidiabetes drugs (moderate), chlorzoxazone (parafon forte, paraflex) (moderate) and omeprazole (prilosec) (moderate) — and none of Glycerol Phenylbutyrate’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

Terminalia Chebula Does Interact With Other Medications

Terminalia Chebula has 93 moderate known drug interactions in our database — Glycerol Phenylbutyrate isn’t one of them. If you take anything else, check it against the full list below.

Moderate 93 No known interaction 2,737 (incl. Glycerol Phenylbutyrate)
Taking anything else?

Check Another of Your Medications Against Terminalia Chebula

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

What to actually watch for

No Interaction Found — But Data Suggests Terminalia Chebula and Glycerol Phenylbutyrate May Share a Side Effect

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • A skin rash Additional detail

    Terminalia Chebula

    “In a small clinical study, two adults with hyperlipidemia developed a hypersensitivity rash, one with facial edema, within minutes of oral administration of Triphala (containing an aqueous extract of Terminalia chebula, Terminalia bellirica, and Indian gooseberry), together with guggul extract. It is unclear if this reaction was due to Triphala, guggul, or other factors.”

    Terminalia Chebula · Natural Medicines adverse-effect record, reported in hypercholesterolemia.

    1 source cited
    1. 105741. Donato F, Raffetti E, Toninelli G, Festa A, Scarcella C, Castellano M; TRIGU Project Working Group. Guggulu and Triphala for the Treatment of Hypercholesterolaemia: A Placebo-Controlled, Double-Blind, Randomised Trial. Complement Med Res 2021;28(3):216-22 PubMed

    Glycerol Phenylbutyrate

    Listed in the ADVERSE REACTIONS section of the FDA label for Glycerol Phenylbutyrate. Read the label on DailyMed ›

Reported for Terminalia Chebula but not commonly for Glycerol Phenylbutyrate: an allergic reaction and swelling.

Effects for Glycerol Phenylbutyrate come from the ADVERSE REACTIONS section of its FDA label; effects for Terminalia Chebula come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 1,358 voluntary FDA FAERS reports for Glycerol Phenylbutyrate that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Terminalia Chebula in Pregnancy & Breastfeeding

Pregnancy Possibly Unsafe

When used orally. One source warns against using Terminalia bellirica and Terminalia chebula during pregnancy; however, the reason for this warning is not described. Until more is known, avoid use.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some Glycerol Phenylbutyrate Products Have a Food Rule — Terminalia Chebula Should Not Break It

At least one FDA label for a product containing Glycerol Phenylbutyrate says to take it with food. If you take Terminalia Chebula on an empty stomach out of habit, keep them separate — and take Glycerol Phenylbutyrate with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Glycerol Phenylbutyrate products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

Instruct patients to take glycerol phenylbutyrate oral liquid with food or formula and to administer directly into the mouth via oral syringe.

From the Dosage and Administration section of the FDA label we read for Glycerol Phenylbutyrate — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Glycerol Phenylbutyrate

This page covers Terminalia Chebula only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Glycerol Phenylbutyrate page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Glycerol Phenylbutyrate page

“Ravicti (glycerol phenylbutyrate) pulls ammonia out of the blood in people with urea cycle disorders, so a dose that never gets absorbed is not a small problem, it can let ammonia climb toward dangerous levels. That is why this list deserves real attention even though it is short.”

Reviewed by 2 · Jul 18, 2026

Open the Glycerol Phenylbutyrate interaction page

How much people look this up

Where Terminalia Chebula and Glycerol Phenylbutyrate 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 Terminalia Chebula
Steady interest

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

29 days ago today
Medication Glycerol Phenylbutyrate
Top 10%

#157 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 Terminalia Chebula reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Terminalia Chebula and Glycerol Phenylbutyrate records this page draws on were last updated July 11, 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 .
Supplement

About Terminalia Chebula

What is Terminalia Chebula?

  • Digestive support and constipation
  • Antioxidant support
  • Oral and throat health
  • General immune support
  • Traditional tonic in Ayurvedic medicine

Terminalia chebula, often called haritaki, is a fruit widely used in Ayurvedic medicine, most commonly for digestion and as a key part of the Triphala blend. Early laboratory and small human studies suggest possible antioxidant and digestive effects, but high-quality evidence in people is limited. Talk with your pharmacist or doctor before using it, especially if you are pregnant, breastfeeding, or take other medicines.

Terminalia chebula · Combretaceae · Dried fruit · Powder (churna), capsules, tablets, decoctions, and as part of herbal blends like Triphala

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

Terminalia Chebula: dosing

There is no official, standardized dose of Terminalia chebula. Traditional and commercial products vary widely in their strength and form.The safest approach is to follow the directions on the product label and not exceed the recommended amount.

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

Read the full Terminalia Chebula monograph & all interactions
Medication

About Glycerol Phenylbutyrate

What Is Glycerol Phenylbutyrate Used For?

Brand name: Ravicti

Glycerol phenylbutyrate oral liquid — available as the brand Ravicti and as a generic — is used for the long-term (chronic) management of urea cycle disorders (UCDs). UCDs are rare inherited conditions where the body cannot properly convert ammonia into urea, causing toxic ammonia levels to build up in the blood and brain.

It is used in patients whose ammonia cannot be controlled by a low-protein diet and/or amino acid supplements alone. It must always be used alongside dietary protein restriction and, in some cases, additional dietary supplements such as essential amino acids, arginine, or citrulline. It is not for treating a sudden, severe spike in ammonia (acute hyperammonemia), and its safety and effectiveness for N-acetylglutamate synthase (NAGS) deficiency have not been established.

See full Glycerol Phenylbutyrate drug information
Keep checking

Other Drugs & Terminalia Chebula

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

0Major
93Moderate
0Minor
2,736No known interaction
93 Moderate 2,736 No interaction
Moderate

93 interactions

Showing 60 of 93 moderate interactions — see all 93 on the Terminalia Chebula page.

No interaction 2,736 drugs checked — show the list

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

Showing the 60 most looked-up of 2,736 medications checked with no known interaction — see the full Terminalia Chebula list.

See the full Terminalia Chebula interactions page
See every supplement checked against Glycerol Phenylbutyrate, ranked by severity
Evidence & sources

Terminalia Chebula References

The 9 references that drive our Terminalia Chebula 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.

  1. Chevallier A. Encyclopedia of Medicinal Plants. New York, NY: DK Publishing, 1996.
  2. Sabu, M. C. and Kuttan, R. Anti-diabetic activity of medicinal plants and its relationship with their antioxidant property. J Ethnopharmacol. 2002;81(2):155-160. PubMed
  3. Murali, Y. K., Anand, P., Tandon, V., Singh, R., Chandra, R., and Murthy, P. S. Long-term effects of Terminalia chebula Retz. on hyperglycemia and associated hyperlipidemia, tissue glycogen content and in vitro release of insulin in streptozotocin induced
  4. Senthilkumar, G. P. and Subramanian, S. Evaluation of antioxidant potential of Terminalia chebula fruits studies in streptozotocin-induced diabetic rats. Pharmaceutical Biology (Netherlands) 2007;45:511-518.
  5. Wu G, Dong Z, Dong J, et al. Effects of mongolian medicine Terminalia chebula Retz. on 6 CYP450 enzymes in rats. Int J Clin Exp Pathol 2020;13(12):3128-3138.
  6. Donato F, Raffetti E, Toninelli G, Festa A, Scarcella C, Castellano M; TRIGU Project Working Group. Guggulu and Triphala for the Treatment of Hypercholesterolaemia: A Placebo-Controlled, Double-Blind, Randomised Trial. Complement Med Res 2021;28(3):216-22 PubMed
  7. Das A, Naveen J, Sreerama YN, Gnanesh Kumar BS, Baskaran V. Low-glycemic foods with wheat, barley and herbs (Terminalia chebula, Terminalia bellerica and Emblica officinalis) inhibit a-amylase, a-glucosidase and DPP-IV activity in high fat and low dose st
  8. Eltimamy M, Elshamarka M, Aboelsaad M, Sayed M, Moawad H. Effects of alcoholic extract of Terminalia Chebula dried fruit on blood biochemical profile in diabetic rats. J Diabetes Metab Disord 2022;21(1):159-170. PubMed
  9. Agrawal OD, Kulkarni YA. Treatment with Terminalia chebula extract reduces insulin resistance, hyperglycemia and improves SIRT1 expression in type 2 diabetic rats. Life (Basel) 2023;13(5):1168. 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 Terminalia Chebula and Glycerol Phenylbutyrate Together: Common Questions

Is it safe to take Terminalia Chebula with Glycerol Phenylbutyrate?
We do not list a known interaction between Terminalia Chebula and Glycerol Phenylbutyrate. 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.
Do Terminalia Chebula and Glycerol Phenylbutyrate have any of the same side effects?
Yes — our sources link each of them separately to one of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Should I take Terminalia Chebula and Glycerol Phenylbutyrate at the same time of day?
At least one FDA label for a product containing Glycerol Phenylbutyrate says to take it with food. If you take Terminalia Chebula on an empty stomach out of habit, keep them separate and take Glycerol Phenylbutyrate with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Glycerol Phenylbutyrate products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Terminalia Chebula and Glycerol Phenylbutyrate combination checked?
Interactions in our licensed database are recorded against drug classes. Glycerol Phenylbutyrate is filed under 1 classification, and Terminalia Chebula has documented interactions with 3 drug classes — none of Glycerol Phenylbutyrate'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 Terminalia Chebula interact with any other medications?
Yes. Terminalia Chebula has 93 documented drug interactions in our database — Glycerol Phenylbutyrate 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 Glycerol Phenylbutyrate interact with any supplements?
Yes. Glycerol Phenylbutyrate has documented interactions with 17 supplements in our database — Terminalia Chebula is not one of them. The Glycerol Phenylbutyrate 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

Terminalia Chebula monograph Uses, safety profile, and every drug interaction in one place Glycerol Phenylbutyrate drug information The full plain-English guide to this medication Glycerol Phenylbutyrate supplement interactions Every supplement checked against Glycerol Phenylbutyrate, 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 9 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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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.