Drug & supplement interaction

Andiroba + Gabapentin

Gabapentin brand names: Neurontin, Gralise.

Minor Interaction
Medically reviewed by · Updated February 2024
The bottom line Minor

Andiroba has a minor interaction with Gabapentin. Andiroba contains fatty acid amides that have shown potential anticonvulsant effects in animal studies.

Read the full interaction report
SeverityMinor
LikelihoodUnlikely
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Andiroba and Gabapentin

Here is the interaction we found between these two, with the evidence behind it.

Minor

Anticonvulsants

Why this applies to Gabapentin

Gabapentin falls under Anticonvulsants — the group Andiroba interacts with.

Andiroba contains fatty acid amides that have shown potential anticonvulsant effects in animal studies. These compounds are believed to act as agonists at gamma-aminobutyric acid (GABA)-A receptors, similar to some anticonvulsant medications. There is a theoretical possibility that combining andiroba with anticonvulsants that also act on GABA receptors could enhance their effects, potentially leading to increased side effects (source: https://pubmed.ncbi.nlm.nih.gov/32164340). However, it's important to note that this is based on theoretical considerations, and more studies are needed to understand the actual interaction between andiroba and anticonvulsants in humans.
Severity Minor Likelihood Unlikely Evidence D

Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans..

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the gist with gabapentin and andiroba oil. Some compounds in andiroba seem to calm the nervous system by nudging GABA receptors, and that's loosely in the same direction gabapentin works. So in theory, layering the two could add up to a bit more of gabapentin's usual effects, like drowsiness, dizziness, or feeling foggy or unsteady on your feet.

I want to be straight with you though: this is purely theoretical, based on animal and lab work, not real cases in people. Andiroba is also used on the skin, not swallowed, and topical use is very unlikely to reach levels that matter. It's rated a minor, unlikely interaction. Still, if you ever take it internally, check with your pharmacist or doctor first.

Contact Dr. Brian directly if you have additional questions on this interaction

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Andiroba Also Interacts With Other Medications

Andiroba has 49 minor known drug interactions in our database — the Gabapentin one above is one of them. If you take anything else, check it against the full list below.

Minor 49 No known interaction 2,781 (incl. Gabapentin)
Taking anything else?

Check Another of Your Medications Against Andiroba

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

From our Q&A

Questions About Andiroba or Gabapentin

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Andiroba or Gabapentin, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Gabapentin

This page covers Andiroba only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Gabapentin page lists 106 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Kava (major).

By severity: 7 major · 82 moderate · 17 minor.

From our pharmacist’s overview on the Gabapentin page

“Gabapentin (Neurontin, Gralise) calms overactive nerves, which means it already slows your nervous system down, and that is exactly what 78 of the 106 supplements on this list also do. So the dominant risk here is sedation stacked on sedation, extra drowsiness at best and dangerously slowed breathing at worst, and with seven entries ra…”

Reviewed by 2 · Jul 18, 2026

Open the Gabapentin interaction page

How much people look this up

Where Andiroba and Gabapentin 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 Andiroba
Steady interest

#1,447 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Gabapentin
Top 5%

#42 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.

Supplement

About Andiroba

What is Andiroba?

Andiroba
  • Skin care and wound healing
  • Insect repellent
  • Muscle and joint aches
  • Anti-inflammatory skin conditions
  • Hair and scalp care

Andiroba is an oil pressed from the seeds of an Amazonian tree, used mainly on the skin for inflammation, minor wounds, aches, and as an insect repellent. Most evidence comes from laboratory and animal studies, so its benefits in people are not well proven. It is most often used topically; avoid internal use and use during pregnancy or breastfeeding because safety has not been established.

Read the full Andiroba monograph & all interactions
Medication

About Gabapentin

What Is Gabapentin Used For?

Brand names: Neurontin, Gralise

Gabapentin (brands include Neurontin, Relgaabi, Gabarone, Gralise, and Horizant) is primarily used to manage postherpetic neuralgia (PHN) — the nerve pain that lingers after a shingles outbreak — in adults. Neurontin, Relgaabi, Gabarone, and gabapentin capsules, tablets, and oral solution are also used as add-on therapy for partial onset seizures (a type of epilepsy) in adults and children aged 3 and older.

Horizant (gabapentin enacarbil extended-release tablet) has two specific approvals: treatment of moderate-to-severe primary restless legs syndrome (RLS) in adults, and management of postherpetic neuralgia in adults. Horizant is not recommended for people who need to sleep during the day and stay awake at night. Gralise is approved only for postherpetic neuralgia and cannot be substituted for other gabapentin products due to its different release profile.

See full Gabapentin drug information
Keep checking

Other Drugs & Andiroba

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

0Major
0Moderate
49Minor
2,780No known interaction
49 Minor 2,780 No interaction
Minor

49 interactions

No interaction 2,780 drugs checked — show the list

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

Showing the 60 most looked-up of 2,780 medications checked with no known interaction — see the full Andiroba list.

See the full Andiroba interactions page
See every supplement checked against Gabapentin, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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Pharmacist Counseling Corner

Taking Andiroba and Gabapentin Together: Common Questions

Can you take Andiroba with Gabapentin?
There is only a minor interaction, which is usually not serious. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Andiroba and Gabapentin interaction?
We rate it Minor. This interaction is generally not clinically significant, but it remains worth noting and discussing with your pharmacist.

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

Still Have a Question About Gabapentin and Andiroba?

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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.