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Dietary supplement

GABA Plant-Sourced 100 mg Ingredients & Drug Interactions

by Solaray

Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

GABA Plant-Sourced 100 mg is a dietary supplement by Solaray with 1 active ingredient. Its ingredients are commonly taken for anxiety and stress, sleep problems, relaxation.Based on those ingredients, 419 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Gamma Amino Butyric Acid. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of GABA Plant-Sourced 100 mg by Solaray

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: 100 mg of GABA (gamma-aminobutyric acid), a compound sourced from plants. GABA is a neurotransmitter your brain naturally makes, and supplements aim to support relaxation and calm.

The capsule also holds inactive ingredients including cellulose, L-glutamic acid, and silica, which are fillers and binders.

Does it work?

Not established
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Gamma-aminobutyric Acid (gaba)'s own graded uses on its monograph.

Why this rating?
  • The label markets this product for: supports relaxation and occasional stress.
  • We looked for evidence on: Anxiety, Psychological well-being, stress management, mental relaxation.
  • The closest evidence on file: Gamma-aminobutyric Acid (gaba) is rated "Insufficient Reliable Evidence To Rate" for Anxiety (Natural Medicines).
  • Also on file: Gamma-aminobutyric Acid (gaba) is rated "Insufficient Reliable Evidence To Rate" for Psychological well-being.

The evidence for GABA isn't established for the uses we have data on—anxiety, ADHD, athletic performance, and chronic bronchitis all show insufficient reliable evidence to rate whether it works. That doesn't mean it doesn't; it means the research isn't solid enough yet to say.

The evidence, ingredient by ingredient Gamma-aminobutyric Acid (gaba)

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

GABA is generally well tolerated when taken by mouth short-term. The most common side effects people report are drowsiness, stomach upset, minor throat burning, muscle weakness, and nausea.

Long-term safety hasn't been well studied, so we don't know what happens with ongoing use. There isn't enough safety data to recommend it during pregnancy, and the data advises against use while breastfeeding.

Side effects, ingredient by ingredient Gamma-aminobutyric Acid (gaba)

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Gamma-aminobutyric Acid (gaba).
  • The most serious interaction on file is rated Moderate.
  • For scale: 419 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Double-check this product if you take blood pressure medication (antihypertensive drugs)—GABA can lower pressure further. Also flag it if you're on sedating medications like sleep aids or certain pain relievers, where it might add to drowsiness.

Use the medication checker on this page with your exact drugs.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

GABA might appeal to someone looking for natural relaxation support, but the evidence for it isn't solid yet. If you take blood pressure medication or sedating drugs, talk to your pharmacist before starting—GABA could intensify their effects.

For long-term use, there's a knowledge gap, so check in with us first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2025.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about GABA Plant-Sourced 100 mg, straight from the product label.

Brand Solaray
Barcode (UPC) 076280346688
Net contents 30 VegCap(s)
Market status On market
Date entered into DSLD Sep 25, 2025
DSLD ID 338531
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for GABA Plant-Sourced 100 mg by Solaray, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 VegCap(s)
Maximum serving Sizes:
1 VegCap(s)
Servings per container
30
UPC/BARCODE
076280346688
IngredientAmount% DV
Gamma Amino Butyric Acid100 mg--

Other ingredients: Cellulose, L-Glutamic Acid, Silica

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)

Solaray Est. 1973 A Brighter Way 1973

Formulation

Plant-sourced The GABA ingredient is sourced from Fermented Barley. Supports: Relaxation Occasional stress

Vegan

Gluten free

Made without soy

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

Lab Verified Vegan

General Statements

Since 1973, we've scoured the globe for the highest-quality ingredients, connecting you with the most efficacious supplements that help you Live Brighter and embrace the moments that matter most.

100% PCR Bottles Comments or questions: 800-538-5888 www.solaray.com

Precautions

Warning: Do not use if safety seal is broken or missing. Keep your licensed health care practitioner informed when using this product. Directions: Use only as directed.

Keep out of reach of children.

Suggested/Recommended/Usage/Directions

Directions: Use only as directed. Take 1 VegCap daily with a glass of water.

Storage

Store in a cool, dry place.

Formula

Discussion: GABA is a neurotransmitter found in the brain that has been shown to support relaxation and occasional stress. Solaray plant-sourced GABA is derived from fermented barley.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

See for yourself

GABA Plant-Sourced 100 mg by Solaray label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in GABA Plant-Sourced 100 mg by Solaray

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 VegCap(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Gamma Amino Butyric Acid

Interacts with
419 drugs
100 mg per serving Form: Barley, Fermented

GABA is a calming chemical messenger (neurotransmitter) that your body makes on its own, and it is sold as a supplement for stress, anxiety, and sleep...

Gamma Amino Butyric Acid monograph & interactions

Other (inactive) ingredients: Cellulose, L-Glutamic Acid, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

GABA Plant-Sourced 100 mg by Solaray Drug Interactions

Want to check YOUR meds against GABA Plant-Sourced 100 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

Go to the checker
419Drugs
172 Moderate 247 Minor

Ingredients driving the most interactions

Each ingredient & the kinds of drugs it affects

For each ingredient in GABA Plant-Sourced 100 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Gamma Amino Butyric Acid2 drug types · 419 drugs

Antihypertensive Drugs

Theoretically, taking GABA with antihypertensive drugs might increase the risk of hypotension.
Some clinical research shows that GABA can decrease blood pressure in patients with hypertension.

Likelihood Possible Evidence B
Cns Depressants

Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants. However, it is unclear if this concern is clinically relevant.
Endogenous GABA has well-established relaxant effects and GABA(A) receptors have an established physiological role in sleep. However, the effects of GABA supplements are unclear, as it is unknown whether exogenous GABA crosses the blood-brain barrier. Although there have been limited reports of drowsiness or tiredness with GABA supplements, these effects have not been widely reported in clinical studies. Additionally, intravenous GABA 0.1-1 mg/kg has been shown to induce anxiety in a dose-dependent manner.

Likelihood Unlikely Evidence D
The maker

Brand information

Manufacturer and brand details for GABA Plant-Sourced 100 mg, from the product label.

Solaray

See all Solaray products
Name
Solaray
City
Salt Lake City
State
UT
ZipCode
84101
Phone Number
800-538-5888
Web Address
www.solaray.com
Pharmacist Counseling Corner

GABA Plant-Sourced 100 mg by Solaray: Common Questions

Does GABA Plant-Sourced 100 mg by Solaray interact with any medications?
Yes. Based on its ingredients, GABA Plant-Sourced 100 mg has a known interaction with 419 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
GABA Plant-Sourced 100 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is GABA, and why would I take it?
GABA is a neurotransmitter your brain naturally produces to help calm your nervous system. People take GABA supplements hoping it'll support relaxation and mental calm, though the research backing these uses isn't established yet.
Is GABA safe to take long-term?
Short-term, it's generally well tolerated. But long-term safety hasn't been well studied, so we don't have solid data on what happens with ongoing use. If you're thinking of taking it regularly, ask your pharmacist or doctor first.
Can I take this if I'm pregnant or breastfeeding?
There isn't enough safety data to know if it's okay in pregnancy. For breastfeeding, the available data advises against it. Talk with your doctor or pharmacist for personalized advice.
What side effects should I expect?
The most common are drowsiness, stomach upset, minor throat burning, muscle weakness, and nausea. Not everyone experiences these, but if they show up, let us know.
Does GABA actually help with anxiety or ADHD?
The evidence isn't established enough to say whether it works for those. That's why I'd recommend talking with your doctor about what might be a better fit for your needs.

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

Not sure if GABA Plant-Sourced 100 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

GABA Plant-Sourced 100 mg label
Sources

Sources & How We Checked

GABA Plant-Sourced 100 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

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

The 12 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Gamma-aminobutyric Acid (gaba) 12 references
  1. Cavagnini F, Invitti C, Pinto M, et al. Effect of acute and repeated administration of gamma aminobutyric acid (GABA) on growth hormone and prolactin secretion in man. Acta Endocrinol (Copenh) 1980;93:149-54.
  2. Nurnberger JI Jr, Berrettini WH, Simmons-Alling S, et al. Intravenous GABA administration is anxiogenic in man. Psychiatry Res 1986;19:113-7. PubMed
  3. Gershman RN, Vasilenko MA, Iliushina GG, et al. [Gammalon in the rehabilitation in infantile cerebral palsy]. Pediatr.Akus.Ginekol. 1977;(6):26-7.
  4. Loeb C, Benassi E, Bo, GP, et al. Preliminary evaluation of the effect of GABA and phosphatidylserine in epileptic patients. Epilepsy Res. 1987;1:209-12 . PubMed
  5. Inoue K, Shirai T, Ochiai H, et al. Blood-pressure-lowering effect of a novel fermented milk containing gamma-aminobutyric acid (GABA) in mild hypertensives. Eur J Clin Nutr 2003;57:490-95.
  6. ELLIOTT, K. A. and JASPER, H. H. Gammaaminobutyric acid. Physiol Rev. 1959;39(2):383-406.
  7. Winsky-Sommerer, R. Role of GABAA receptors in the physiology and pharmacology of sleep. Eur.J.Neurosci. 2009;29(9):1779-1794.
  8. Meldrum, B. S. GABAergic mechanisms in the pathogenesis and treatment of epilepsy. Br.J.Clin.Pharmacol. 1989;27 Suppl 1:3S-11S. PubMed
  9. Loeb, C., Marinari, U. M., Benassi, E., Besio, G., Cottalasso, D., Cupello, A., Maffini, M., Mainardi, P., Pronzato, M. A., and Scotto, P. A. Phosphatidylserine increases in vivo the synaptosomal uptake of exogenous GABA in rats. Exp.Neurol. 1988;99(2):4 PubMed
  10. Melis, G. B., Paoletti, A. M., Mais, V., and Fioretti, P. Interference of dopamine infusion on gamma-amino butyric acid (GABA)-stimulated prolactin increase. J.Endocrinol.Invest 1980;3(4):445-448.
  11. Boonstra E, de Kleijn R, Colzato LS, Alkemade A, Forstmann BU, Nieuwenhuis S. Neurotransmitters as food supplements: the effects of GABA on brain and behavior. Front Psychol. 2015 Oct 6;6:1520. doi: 10.3389/fpsyg.2015.01520. eCollection 2015. PubMed
  12. de Bie TH, Witkamp RF, Balvers MG, Jongsma MA. Effects of ?-aminobutyric acid supplementation on glucose control in adults with prediabetes: A double-blind, randomized, placebo-controlled trial. Am J Clin Nutr 2023;118(3):708-719. PubMed

See these in context on the Gamma-aminobutyric Acid (gaba) monograph →

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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