Drug & supplement interaction

Irvingia Gabonensis + Lonafarnib

Lonafarnib brand name: Zokinvy.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Irvingia Gabonensis and Lonafarnib 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 Lonafarnib 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

Irvingia Gabonensis and Lonafarnib

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 Lonafarnib and Irvingia Gabonensis 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.

Irvingia Gabonensis safety at a glance

Irvingia Gabonensi... overall Use caution Generally tolerated short-term in studies, but long-term safety and product quality are not well established.
Pregnancy Avoid Not enough safety data, so it is best avoided during pregnancy.
Breastfeeding Avoid No reliable safety information is available while breastfeeding.

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

Still wondering about combining Lonafarnib and Irvingia Gabonensis? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Lonafarnib

Interactions in our licensed database are recorded against drug classes, not just single drug names. Lonafarnib is filed under 5 classifications — including cytochrome p450 2c9 (cyp2c9) substrates, cytochrome p450 3a4 (cyp3a4) inhibitors, nephrotoxic drugs. Irvingia Gabonensis has documented interactions with 2 drug classes — the most serious being antidiabetes drugs (moderate) and testosterone (moderate) — and none of Lonafarnib’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

Irvingia Gabonensis Does Interact With Other Medications

Irvingia Gabonensis has 94 moderate known drug interactions in our database — Lonafarnib isn’t one of them. If you take anything else, check it against the full list below.

Moderate 94 No known interaction 2,736 (incl. Lonafarnib)
Taking anything else?

Check Another of Your Medications Against Irvingia Gabonensis

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

What to actually watch for

No Interaction Found — But Data Suggests Irvingia Gabonensis and Lonafarnib May Share Several of the Same Side Effects

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.

  • Bloating or gas / Nausea Additional detail

    Irvingia Gabonensis

    “Flatulence has been reported following 10 weeks of supplementation with Irvingia gabonensis alone or in combination with Cissus quadrangularis. Similar events were observed in controls. Mild nausea has also been reported following the administration of Irvingia gabonensis 0.3-4 grams daily for up to 12 weeks; however, some of these symptoms were alleviated by the addition of milk to the test preparation.”

    Irvingia Gabonensis · Natural Medicines adverse-effect record, reported in flatulence.

    4 sources cited
    1. 17070. Ngondi JL, Etoundi BC, Nyangono CB, et al. IGOB131, a novel seed extract of the West African plant Irvingia gabonensis, significantly reduces body weight and improves metabolic parameters in overweight humans in a randomized double-blind placebo controll
    2. 16457. Oben JE, Ngondi JL, Momo CN, et al. The use of Cissus quadrangularis/Irvingia gabonensis combination in the management of weight loss: a double-blind placebo-controlled study. Lipids Health Dis 2008;7:12.
    3. 61589. Adamson, I., Okafor, C., and Abu-Bakare, A. A supplement of Dikanut (Irvingia gabonesis) improves treatment of type II diabetics. West Afr.J.Med. 1990;9(2):108-115.
    4. 112220. Nonsa-Ard R, Aneknan P, Tong-Un T, Honsawek S, Leelayuwat N. Effects of Irvingia gabonensis Extract on Metabolism, Antioxidants, Adipocytokines, Telomere Length, and Aerobic Capacity in Overweight/Obese Individuals. Nutrients 2022;14(21):4646. PubMed

    Lonafarnib

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

  • Tiredness Additional detail

    Irvingia Gabonensis

    “One case of acute hepatitis secondary to Irvingia gabonensis has been reported. A 45-year old male with a ten-day history of Irvingia gabonensis supplementation, at a dose of 350 mg of seed extract twice daily for body fat reduction, was admitted with jaundice, abdominal discomfort, and new onset malaise. His complaints began four days after starting Irvingia gabonensis supplementation.”

    Irvingia Gabonensis · Natural Medicines adverse-effect record, reported in alcohol-related liver disease.

    1 source cited
    1. 92824. Kilinçalp S, Basar O, Coban S, Yüksel I. Irvingia gabonensis (African mango): innocent magic formula? Acta Gastroenterol Belg 2014;77(1):75-6.

    Lonafarnib

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

  • Headache Additional detail

    Irvingia Gabonensis

    “Headache and insomnia have been reported in patients taking Irvingia gabonensis alone or in conjunction with Cissus quadrangularis for periods of 10 weeks. Similar events were observed in control groups.”

    Irvingia Gabonensis · Natural Medicines adverse-effect record, reported in cluster headache.

    2 sources cited
    1. 16457. Oben JE, Ngondi JL, Momo CN, et al. The use of Cissus quadrangularis/Irvingia gabonensis combination in the management of weight loss: a double-blind placebo-controlled study. Lipids Health Dis 2008;7:12.
    2. 17070. Ngondi JL, Etoundi BC, Nyangono CB, et al. IGOB131, a novel seed extract of the West African plant Irvingia gabonensis, significantly reduces body weight and improves metabolic parameters in overweight humans in a randomized double-blind placebo controll

    Lonafarnib

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

Reported for Irvingia Gabonensis but not commonly for Lonafarnib: stomach upset, liver problems, trouble sleeping and yellowing of the skin or eyes.

Effects for Lonafarnib come from the ADVERSE REACTIONS section of its FDA label; effects for Irvingia Gabonensis come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

How to take them

Some Lonafarnib Products Have a Food Rule — Irvingia Gabonensis Should Not Break It

At least one FDA label for a product containing Lonafarnib says to take it with food. If you take Irvingia Gabonensis on an empty stomach out of habit, keep them separate — and take Lonafarnib 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 Lonafarnib 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.

If a dose is missed, take the dose as soon as possible with food, up to 8 hours prior to the next scheduled dose.

From the Dosage and Administration section of the FDA label we read for Lonafarnib — 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 Lonafarnib

This page covers Irvingia Gabonensis only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lonafarnib page lists 160 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Grapefruit (major), Siberian Cocklebur (major) and St. John's Wort (major).

By severity: 5 major · 115 moderate · 40 minor.

From our pharmacist’s overview on the Lonafarnib page

“If you or your child takes lonafarnib (Zokinvy) for progeria, treat supplements with real caution. Most of the 160 flagged ingredients cross paths with the CYP3A4 enzyme, the same one that handles lonafarnib, so the traffic runs both ways.”

Reviewed by 2 · Jul 18, 2026

Open the Lonafarnib interaction page

One more smart check

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

We hold 406 real supplement products containing Irvingia Gabonensis, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Irvingia Gabonensis. Even though Irvingia Gabonensis itself has no known interaction with Lonafarnib, 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 Irvingia Gabonensis and Lonafarnib 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 Irvingia Gabonensis
Top 25%

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

29 days ago today
Medication Lonafarnib
Steady interest

#1,489 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 Irvingia Gabonensis reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Irvingia Gabonensis and Lonafarnib records this page draws on were last updated July 10, 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 Irvingia Gabonensis

What is Irvingia Gabonensis?

Irvingia Gabonensis
  • Weight loss
  • Appetite control
  • Cholesterol support
  • Blood sugar support
  • Metabolism support

Irvingia gabonensis (African mango) is a seed extract marketed mainly for weight loss and metabolic health. A few small studies suggest possible benefits, but the research is limited and low-quality, so the true effect is uncertain. Talk with your pharmacist or doctor before using it, and do not rely on it in place of proven diet and lifestyle changes.

Irvingia gabonensis · Irvingiaceae · Seed (kernel, also called dika nut); seed extract · Capsules, tablets, powder, standardized seed extract

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

Irvingia Gabonensis: dosing

There is no officially established or standardized dose for Irvingia gabonensis. Studies have used different seed extracts and amounts, so it is hard to recommend one specific dose.If you choose to try it, follow the directions on the product label and do not exceed them.

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

Read the full Irvingia Gabonensis monograph & all interactions
Medication

About Lonafarnib

What Is Lonafarnib Used For?

Brand name: Zokinvy

Zokinvy (lonafarnib) is approved for patients 12 months of age and older who have a body surface area of 0.39 m² or above. It is used to reduce the risk of mortality in Hutchinson-Gilford Progeria Syndrome (HGPS) — a rare, severe premature-aging disorder.

Zokinvy is also used to treat processing-deficient Progeroid Laminopathies — a related group of rare genetic conditions — specifically those caused by a heterozygous LMNA mutation with progerin-like protein buildup, or by homozygous or compound heterozygous ZMPSTE24 mutations. It is not indicated for other Progeroid Syndromes or processing-proficient Progeroid Laminopathies.

Most-Reported Side Effects for Lonafarnib

From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 16 reports
Vomiting 12 reports
Headache 4 reports
Abdominal pain upper 3 reports
Asthenia 3 reports
See full Lonafarnib drug information
Keep checking

Other Drugs & Irvingia Gabonensis

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

0Major
94Moderate
0Minor
2,735No known interaction
94 Moderate 2,735 No interaction
Moderate

94 interactions

Showing 60 of 94 moderate interactions — see all 94 on the Irvingia Gabonensis page.

No interaction 2,735 drugs checked — show the list

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

Showing the 60 most looked-up of 2,735 medications checked with no known interaction — see the full Irvingia Gabonensis list.

See the full Irvingia Gabonensis interactions page
See every supplement checked against Lonafarnib, ranked by severity
Evidence & sources

Irvingia Gabonensis References

The 7 references that drive our Irvingia Gabonensis 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. Oben JE, Ngondi JL, Momo CN, et al. The use of Cissus quadrangularis/Irvingia gabonensis combination in the management of weight loss: a double-blind placebo-controlled study. Lipids Health Dis 2008;7:12.
  2. Ngondi JL, Etoundi BC, Nyangono CB, et al. IGOB131, a novel seed extract of the West African plant Irvingia gabonensis, significantly reduces body weight and improves metabolic parameters in overweight humans in a randomized double-blind placebo controll
  3. Adamson, I., Okafor, C., and Abu-Bakare, A. A supplement of Dikanut (Irvingia gabonesis) improves treatment of type II diabetics. West Afr.J.Med. 1990;9(2):108-115.
  4. Adamson, I., Okafor, C., and Abu-Bakare, A. Erythrocyte membrane ATPases in diabetes: effect of dikanut (Irvingia gabonensis). Enzyme 1986;36(3):212-215. PubMed
  5. Wolfe OA, Ijeoma UF. Effects of aqueous extracts of Irvingia gabonensis seeds on the hormonal parameters of male guinea pigs. Asian Pacific Journal of Tropical Medicine. 2010;3(3):200-204. DOI
  6. Kilinçalp S, Basar O, Coban S, Yüksel I. Irvingia gabonensis (African mango): innocent magic formula? Acta Gastroenterol Belg 2014;77(1):75-6.
  7. Nonsa-Ard R, Aneknan P, Tong-Un T, Honsawek S, Leelayuwat N. Effects of Irvingia gabonensis Extract on Metabolism, Antioxidants, Adipocytokines, Telomere Length, and Aerobic Capacity in Overweight/Obese Individuals. Nutrients 2022;14(21):4646. 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 Irvingia Gabonensis and Lonafarnib Together: Common Questions

Is it safe to take Irvingia Gabonensis with Lonafarnib?
We do not list a known interaction between Irvingia Gabonensis and Lonafarnib. 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 Irvingia Gabonensis and Lonafarnib have any of the same side effects?
Yes — our sources link each of them separately to 4 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 Irvingia Gabonensis and Lonafarnib at the same time of day?
At least one FDA label for a product containing Lonafarnib says to take it with food. If you take Irvingia Gabonensis on an empty stomach out of habit, keep them separate and take Lonafarnib with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Lonafarnib products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Irvingia Gabonensis and Lonafarnib combination checked?
Interactions in our licensed database are recorded against drug classes. Lonafarnib is filed under 5 classifications, and Irvingia Gabonensis has documented interactions with 2 drug classes — none of Lonafarnib'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 Irvingia Gabonensis interact with any other medications?
Yes. Irvingia Gabonensis has 94 documented drug interactions in our database — Lonafarnib 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 Lonafarnib interact with any supplements?
Yes. Lonafarnib has documented interactions with 160 supplements in our database — Irvingia Gabonensis is not one of them. The Lonafarnib 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

Irvingia Gabonensis monograph Uses, safety profile, and every drug interaction in one place Lonafarnib drug information The full plain-English guide to this medication Lonafarnib supplement interactions Every supplement checked against Lonafarnib, 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 7 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Lonafarnib and Irvingia Gabonensis?

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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.