Medication interaction hub

What Supplements Interact with Methadone?

Methadone brand name: Dolophine. Every interaction below applies to the brands too.

223 Interactions 10 Major 174 Moderate 39 Minor
Curated & coded by · Clinical Pharmacist · Updated October 1, 2026

Drug–supplement interaction data sourced from Natural Medicines Pro, the licensed clinical database from TRC Healthcare / Therapeutic Research, with additional analysis by the HelloPharmacist Pharmacist Team. Our sources · Editorial policy

What is this page for?

One answer, for one medication: what supplements and herbal products interact with Methadone? Every vitamin, herb, and supplement ingredient we’ve checked against it is on this page, ranked by severity, each linking to the full report for that exact pair.

This page covers supplement interactions only — to check Methadone against your other medications, use the drug–drug interaction checker. Educational information from our licensed clinical databases, not medical advice. Our editorial policy

HelloPharmacist Bottom Line
Our Pharmacist Explains
What is this? The interaction data in the HelloPharmacist supplement database is licensed from Natural Medicines Pro by TRC Healthcare (Therapeutic Research). HelloPharmacist pharmacists often add our own analysis and context on top of that licensed data — such as this Bottom Line summary and the notes on individual interaction pages — and any such commentary is noted as ours.

If you take methadone, choose your supplements with genuine care. Of the 223 ingredients on this page, most either add to methadone's sedating effect or change how fast your body clears it, which can push its blood level up or down. With an opioid, extra sedation can mean dangerously slowed breathing, and a dropping level can mean withdrawal, so neither direction is harmless.

The ten major-rated entries are where I would focus. Grapefruit can raise methadone levels, St. John's wort can lower them, and alcohol in any form stacks sedation on top. Twenty more ingredients can add to serotonin effects, and charcoal products or bulking fibers can blunt absorption of anything swallowed close to them. The remaining 174 moderate and 39 minor entries are milder echoes, but if one of the majors is part of your day, ask your pharmacist before pairing it with methadone.

— , Clinical Pharmacist · July 18, 2026

Major 10 Moderate 174 Minor 39 No known interaction 1,229

This box checks one ingredient at a time (like turmeric or magnesium). Taking a supplement product with a whole label of ingredients? Search the product instead — we check every ingredient on it ↓

Top Ingredient Interactions

Methadone: Top Interactions at a Glance

The most significant Methadone supplement & herbal interactions, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 223 interacting ingredients — plus 1,229 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

The most clinically significant Methadone + supplement combinations in our database, best-documented first. Open any card for the full report.

Major Likelihood Likely Beer + Methadonei

Concomitant use may increase sedative and other adverse effects.

Read the full interaction Major Likelihood Likely Grapefruit + Methadonei

Grapefruit juice can increase levels of drugs metabolized by CYP3A4.

Read the full interaction Major Likelihood Likely Wine + Methadonei

Concomitant use may increase sedative and other adverse effects.

Read the full interaction Major Likelihood Probable 1,4-butanediol + Methadonei

Theoretically, concomitant use of 1,4-butanediol with CNS depressants may potentiate respiratory and CNS depression.

Read the full interaction Major Likelihood Probable Activated Charcoal + Methadonei

Activated charcoal reduces systemic exposure to many drugs, including those that undergo enterohepatic recirculation, regardless of the route of administration.

Read the full interaction Major Likelihood Probable Gamma-hydroxybutyrate (ghb) + Methadonei

GHB may increase the risk of serious CNS and respiratory depression.

Read the full interaction
The complete list

Every Supplement Checked Against Methadone

All 1,452 ingredients in our database, ranked by severity — 223 with a Methadone interaction on file and 1,229 with none found. Filter by severity or search any ingredient; hover the for what each ingredient is.

Looking for an interaction with a specific supplement product? Search products instead ↓

Straight answers

Can You Take It With Methadone?

One-line answers, one card per combination — scroll through today’s 20 and tap any card for the full report. A different set rotates in daily until every combination has had its turn.

Can you take Grapefruit with Methadone?

Major Use real caution — this is a major-rated interaction, generally best avoided or used only under close supervision. Grapefruit juice can increase levels of drugs metabolized by CYP3A4.

Full Grapefruit + Methadone answer

Can you take Ashwagandha with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.

Full Ashwagandha + Methadone answer

Can you take 5-htp with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.

Full 5-htp + Methadone answer

Can you take 1,3-dmaa with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. 1,3-DMAA strongly inhibits cytochrome P450 2D6 (CYP2D6) enzymes in vitro.

Full 1,3-dmaa + Methadone answer

Can you take Acacia Rigidula with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, Acacia rigidula products that are adulterated with beta-methylphenylethylamine (BMPEA) might increase the levels of CYP2D6 su...

Full Acacia Rigidula + Methadone answer

Can you take Acetyl-l-carnitine with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstr...

Full Acetyl-l-carnitine + Methadone answer

Can you take Active Hexose Correlated Compound (ahcc) with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, AHCC might increase levels of drugs metabolized by CYP2D6.

Full Active Hexose Correlated Compound (ahcc) + Methadone answer

Can you take Adrafinil with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, adrafanil might reduce levels and clinical effects of CYP3A4 substrates.

Full Adrafinil + Methadone answer

Can you take Adrue with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Animal research suggests that taking adrue in combination with sodium thiopental or diazepam increases total sleep time up to four-fold comp...

Full Adrue + Methadone answer

Can you take African Wild Potato with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In vitro evidence shows that African wild potato extract can inhibit cytochrome P450 3A4 (CYP3A4) enzyme activity by up to 86%.

Full African Wild Potato + Methadone answer

Can you take Albizia Julibrissin with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Animal research suggests that certain constituents from Albizia julibrissin flowers can potentiate pentobarbital-induced sleeping time in mi...

Full Albizia Julibrissin + Methadone answer

Can you take American Elder with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking American elder might increase levels of CYP3A4 substrates.

Full American Elder + Methadone answer

Can you take Astaxanthin with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, astaxanthin may decrease levels of drugs metabolized by CYP3A4.

Full Astaxanthin + Methadone answer

Can you take Bacopa with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, bacopa might increase the levels and adverse effects of CYP3A4 substrates.

Full Bacopa + Methadone answer

Can you take Bay Leaf with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking bay leaf in large amounts may enhance the therapeutic and adverse effects of sedatives.

Full Bay Leaf + Methadone answer

Can you take Beet with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, beet might increase the levels of CYP3A4 substrates.

Full Beet + Methadone answer

Can you take Berberine with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, berberine might increase the sedative effects of CNS depressants.

Full Berberine + Methadone answer

Can you take Beta-methylphenethylamine (bmpea) with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, BMPEA might increase the levels and clinical effects of CYP2D6 substrates.

Full Beta-methylphenethylamine (bmpea) + Methadone answer

Can you take Biofeedback with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. There is some concern that electroencephalogram (EEG) biofeedback might lower the seizure threshold in some patients.

Full Biofeedback + Methadone answer

Can you take Bishop's Weed with Methadone?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Bergapten, a constituent of bishop's weed, has been shown to inhibit cytochrome P450 3A4 (CYP3A4) in vitro.

Full Bishop's Weed + Methadone answer
Read the list like a pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction 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.
  • Possible. Interaction 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
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each entry links to a full report with the clinical detail, likelihood, evidence level, and citations for that exact combination.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

How Does Our Interaction Checker Work?

Behind every verdict on this page is a category system. Our source database doesn’t document supplement interactions drug-by-drug — it documents them against groups of medications that behave the same way (for example, “drugs processed by the CYP3A4 liver enzyme” or “blood-thinning medications”).

So the check works in three steps: (1) Methadone is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Methadone, and (3) each ingredient keeps its own severity, likelihood, and evidence grades from the underlying record. That’s why one supplement can carry several records for one drug — it may interact through more than one category.

Methadone sits in 11 interaction categories. Open any one to see what the group means:

Cytochrome P450 3A4 (Cyp3A4) Substrates 121 ingredients

A drug-metabolism group: these medications are processed by the named liver enzyme (a cytochrome P450). Supplements that speed this enzyme up or slow it down can lower or raise the medication's levels in your body.

121 of the supplement ingredients on this page reach Methadone through this category.

Cns Depressants 78 ingredients

Central-nervous-system depressants. Sedating supplements can intensify drowsiness and slowed reactions when combined.

78 of the supplement ingredients on this page reach Methadone through this category.

Cytochrome P450 2D6 (Cyp2D6) Substrates 60 ingredients

A drug-metabolism group: these medications are processed by the named liver enzyme (a cytochrome P450). Supplements that speed this enzyme up or slow it down can lower or raise the medication's levels in your body.

60 of the supplement ingredients on this page reach Methadone through this category.

Serotonergic Drugs 20 ingredients

Medications that raise serotonin activity. Combining them with serotonin-active supplements can, in rare cases, push serotonin too high.

20 of the supplement ingredients on this page reach Methadone through this category.

Oral Drugs 17 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

17 of the supplement ingredients on this page reach Methadone through this category.

Seizure Threshold Lowering Drugs 6 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

6 of the supplement ingredients on this page reach Methadone through this category.

Narcotic Drugs 5 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

5 of the supplement ingredients on this page reach Methadone through this category.

Cytochrome P450 2D6 (Cyp2D6) Inhibitors 3 ingredients

A drug-metabolism group: these medications are processed by the named liver enzyme (a cytochrome P450). Supplements that speed this enzyme up or slow it down can lower or raise the medication's levels in your body.

3 of the supplement ingredients on this page reach Methadone through this category.

Methadone (Dolophine) 2 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

2 of the supplement ingredients on this page reach Methadone through this category.

Methadone (Dolophine) 1 ingredient

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

1 of the supplement ingredient on this page reaches Methadone through this category.

Serotonergic Drugs 1 ingredient

Medications that raise serotonin activity. Combining them with serotonin-active supplements can, in rare cases, push serotonin too high.

1 of the supplement ingredient on this page reaches Methadone through this category.

About Methadone

Methadone is an opiate pain medication used to treat severe long-term pain and prevent withdrawal symptoms in people recovering from opioid addiction.

Generic name: Methadone  ·  Brand name: Dolophine.

See the full Methadone drug information
Check a real product

Take a Supplement Product? Check the Whole Bottle Against Methadone

Most supplements are combination products — and the interaction may come from an ingredient you didn’t buy it for. Search any product below (or scan its label) and we’ll check every ingredient on it against Methadone.

Search a supplement product

Type a product name, brand, or UPC — smart search across our full catalog.

Grounded search over our product catalog — every verdict comes from our interaction database, never AI guesswork. How we use AI

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Photograph any Supplement Facts panel — we read the ingredients and check each one against your medications. Free, in seconds.

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Prefer typing? The interaction checker looks up products by name too.

Products that contain Methadone-interacting ingredients

Real supplements from the NIH label database that contain the top interacting ingredients on this page — each one is worth a full label check before combining with Methadone.

Yeast-Cleanse by Solaray contains Grapefruit Ultimate GCB by M3 Supplement Company contains Grapefruit Neuro Health by Nature’s Craft contains Grapefruit NDF Happy Peach by Bioray Kids contains Grapefruit
Pharmacist Counseling Corner

Methadone & Supplements: Common Questions

What supplements interact with Methadone?
Our database currently documents 223 ingredients with a known Methadone interaction (10 major, 174 moderate, 39 minor). The practical move: scan the major group first, then look up the exact supplements you take rather than reading all 223. The highest-ranked right now: Beer, Grapefruit, Wine.
Which Methadone supplement interactions are the most serious?
Focus on the major group: Beer, Grapefruit, Wine, 1,4-butanediol and Activated Charcoal, among others. A major rating means the combination can be clinically significant, not that harm is guaranteed — but it's exactly the kind of thing to run past your pharmacist before your next dose, not after. Jump to the ranked list.
Can I take vitamins or supplements while on Methadone?
Plenty of supplements coexist fine with Methadone; a shorter list does not. Rather than memorizing it, check the specific ingredients on your labels — the ranked list above covers every one we've checked, and multi-ingredient products can be checked label-by-label with our scanner. Try the label scanner or the interaction checker.
Do brands like Dolophine have the same supplement interactions as Methadone?
Yes — Dolophine all contain Methadone, so everything on this page applies to them equally. Interactions belong to the active drug, never to the brand on the box; the same is true of generics.
Where do these interaction ratings come from?
Every rating comes from the Natural Medicines database — the same evidence-graded reference pharmacists and hospitals use — and each interaction carries three separate grades: severity (how bad it can be), likelihood (how well it's documented in studies and case reports), and an evidence level. Our pharmacists review the content; we never let an AI decide an interaction. See how to read the ratings and our editorial policy.
What about Methadone and my other medications?
This page covers Methadone against supplements and herbal ingredients. Checking Methadone against your other prescription or OTC medications is a different tool — our drug interaction checker covers that side. Head to the drug–drug interaction checker, or read the full Methadone drug information.

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

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Sourcing

Where This Data Comes From — and Why You Can Trust It

🧪 Licensed clinical database

Every interaction verdict on this page comes from Natural Medicines Pro (TRC Healthcare / Therapeutic Research) — the same evidence-graded reference used by pharmacists and hospitals. We license this data directly; we do not scrape it, and no AI invents an interaction.

🧑‍⚕️ Pharmacist review

This page is curated and coded by , Clinical Pharmacist, with additional analysis by the HelloPharmacist Pharmacist Team. Editorial commentary is ours; the licensed interaction records are shown as sourced.

🔄 Kept current

Our interaction database refreshes on a weekly cycle, and this page re-checks the live database every time it’s rebuilt — what you see reflects the database as of October 1, 2026.

🔍 Full transparency

How every dataset on this site is sourced, licensed, and updated is documented publicly: our data sources · editorial policy · how we use AI.

Educational information, not medical advice. An interaction being on file does not mean it will happen to you — and absence of one is not proof of safety. Never start or stop a medication or supplement without talking to your pharmacist or doctor.