Medication interaction hub

What Supplements Interact with Acetaminophen, Aspirin?

Acetaminophen, Aspirin brand name: Gemnisyn. Every interaction below applies to the brands too.

321 Interactions 7 Major 270 Moderate 44 Minor
Curated & coded by · Clinical Pharmacist · Updated September 22, 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 Acetaminophen, Aspirin? 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 Acetaminophen, Aspirin 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.

Acetaminophen with aspirin (Gemnisyn) is the kind of pain reliever people take without a second thought, which is exactly why its interaction list deserves genuine care. More than 200 of the 321 ingredients on file thin the blood in some way, and layered on top of aspirin that means a higher chance of bleeding, especially in the stomach. Alcohol earns two of the seven major ratings on those grounds: beer or wine with this combination raises the risk of GI bleeding.

The moderate entries (270 of them, plus 44 minor) are lower stakes but follow real themes. Nearly 40 ingredients add strain to the liver, which is acetaminophen's weak point, a few stress the kidneys, and activated charcoal, another major entry, can soak up the medication before it works. Learn the seven major pairings first, and keep absorption-blocking products well separated from your dose.

— , Clinical Pharmacist · July 18, 2026

Major 7 Moderate 270 Minor 44 No known interaction 1,131

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 ↓

Most Viewed Ingredient Interactions

Acetaminophen, Aspirin: Top Interactions at a Glance

The Acetaminophen, Aspirin supplement & herbal interactions people checked most in the last 24 hours, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 321 interacting ingredients — plus 1,131 more checked with no known interaction. See the complete ranked list.

Start here

The Most-Checked Acetaminophen, Aspirin Combinations Today

The Acetaminophen, Aspirin + supplement pages people viewed most in the last 24 hours (resets at midnight). Open any card for the full report.

Minor Likelihood Probable Vitamin C + Acetaminophen, Aspirini

High-dose vitamin C might slightly prolong the clearance of acetaminophen.

Read the full interaction Minor Likelihood Possible Chromium + Acetaminophen, Aspirini

NSAIDs might increase chromium levels in the body.

Read the full interaction Moderate Likelihood Possible Alpha-lipoic Acid + Acetaminophen, Aspirini

Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.

Read the full interaction Moderate Likelihood Possible Niacin + Acetaminophen, Aspirini

Theoretically, concomitant use of niacin and hepatotoxic drugs might increase the risk of hepatotoxicity.

Read the full interaction Moderate Likelihood Possible Caffeine + Acetaminophen, Aspirini

Theoretically, caffeine may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.

Read the full interaction Minor Likelihood Unlikely Magnesium + Acetaminophen, Aspirini

Theoretically, magnesium may have antiplatelet effects, but the evidence is conflicting.

Read the full interaction
The complete list

Every Supplement Checked Against Acetaminophen, Aspirin

All 1,452 ingredients in our database, ranked by severity — 321 with a Acetaminophen, Aspirin interaction on file and 1,131 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 Acetaminophen, Aspirin?

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 Vitamin C with Acetaminophen, Aspirin?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. High-dose vitamin C might slightly prolong the clearance of acetaminophen.

Full Vitamin C + Acetaminophen, Aspirin answer

Can you take Chromium with Acetaminophen, Aspirin?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. NSAIDs might increase chromium levels in the body.

Full Chromium + Acetaminophen, Aspirin answer

Can you take Alpha-lipoic Acid with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, alpha-lipoic acid may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplate...

Full Alpha-lipoic Acid + Acetaminophen, Aspirin answer

Can you take Niacin with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of niacin and hepatotoxic drugs might increase the risk of hepatotoxicity.

Full Niacin + Acetaminophen, Aspirin answer

Can you take Caffeine with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, caffeine may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.

Full Caffeine + Acetaminophen, Aspirin answer

Can you take Mace with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Animal research suggests that intraperitoneal injections of myristicin, a constituent of mace, can induce cytochrome P450 1A2 (CYP1A2) enzym...

Full Mace + Acetaminophen, Aspirin answer

Can you take Magnolia with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, magnolia might have additive effects and increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.

Full Magnolia + Acetaminophen, Aspirin answer

Can you take Manchurian Thorn with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Animal research suggests that high doses of Manchurian thorn can induce liver damage.

Full Manchurian Thorn + Acetaminophen, Aspirin answer

Can you take Mangosteen with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of mangosteen with anticoagulant or antiplatelet drugs may increase the risk of bleeding.

Full Mangosteen + Acetaminophen, Aspirin answer

Can you take Maral Root with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In vitro research shows that maral root tincture can reduce platelet aggregation.

Full Maral Root + Acetaminophen, Aspirin answer

Can you take Maritime Pine with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.

Full Maritime Pine + Acetaminophen, Aspirin answer

Can you take Marjoram with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In vitro research suggests that marjoram extract inhibits platelet aggregation and adhesion.

Full Marjoram + Acetaminophen, Aspirin answer

Can you take Meadowsweet with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, meadowsweet might have an additive effect with other salicylate-containing drugs, such as aspirin.

Full Meadowsweet + Acetaminophen, Aspirin answer

Can you take Mesoglycan with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, combined use might increase bleeding risk.

Full Mesoglycan + Acetaminophen, Aspirin answer

Can you take Methoxylated Flavones with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Some in vitro evidence suggests that methoxylated flavones might induce CYP1A2, possibly by increasing gene transcription.

Full Methoxylated Flavones + Acetaminophen, Aspirin answer

Can you take Milk Thistle with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, milk thistle might affect the clearance of drugs that undergo glucuronidation.

Full Milk Thistle + Acetaminophen, Aspirin answer

Can you take Mountain Ash with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Taking large amounts of fresh mountain ash berries may cause kidney damage due to its parasorbic acid constituent.

Full Mountain Ash + Acetaminophen, Aspirin answer

Can you take N-acetyl Cysteine (nac) with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, N-acetyl cysteine might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.

Full N-acetyl Cysteine (nac) + Acetaminophen, Aspirin answer

Can you take Nattokinase with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Nattokinase might increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.

Full Nattokinase + Acetaminophen, Aspirin answer

Can you take Neem with Acetaminophen, Aspirin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.

Full Neem + Acetaminophen, Aspirin 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) Acetaminophen, Aspirin is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Acetaminophen, Aspirin, 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.

Acetaminophen, Aspirin sits in 13 interaction categories. Open any one to see what the group means:

Anticoagulant/Antiplatelet Drugs 202 ingredients

Blood-thinning medications. Supplements with their own effects on clotting or platelets can add up with these drugs and raise bleeding risk.

202 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Cytochrome P450 1A2 (Cyp1A2) Substrates 79 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.

79 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Hepatotoxic Drugs 38 ingredients

Medications with known liver considerations. Supplements that can stress the liver add to the load.

38 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Cytochrome P450 2E1 (Cyp2E1) Substrates 24 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.

24 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Aspirin 22 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.

22 of the supplement ingredients on this page reach Acetaminophen, Aspirin 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 Acetaminophen, Aspirin through this category.

Glucuronidated Drugs 12 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.

12 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Acetaminophen (Tylenol, Others) 8 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.

8 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Nephrotoxic 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 Acetaminophen, Aspirin through this category.

Nonsteroidal Anti-Inflammatory Drugs (Nsaids) 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 Acetaminophen, Aspirin through this category.

Organic Anion Transporter 1 (Oat1) Substrates 4 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.

4 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Organic Anion Transporter 3 (Oat3) Substrates 4 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.

4 of the supplement ingredients on this page reach Acetaminophen, Aspirin through this category.

Cytochrome P450 1A2 (Cyp1A2) Substrates 1 ingredient

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.

1 of the supplement ingredient on this page reaches Acetaminophen, Aspirin through this category.

Related: does Acetaminophen, Aspirin deplete any nutrients?

Acetaminophen, Aspirin has 5 reported nutrient associations in the research literature — see the Acetaminophen, Aspirin nutrient depletion report.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against Acetaminophen, Aspirin

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 Acetaminophen, Aspirin.

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

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Pharmacist Counseling Corner

Acetaminophen, Aspirin & Supplements: Common Questions

What supplements interact with Acetaminophen, Aspirin?
In our interaction database, 321 supplement and herbal ingredients have an interaction with Acetaminophen, Aspirin on file — 7 rated major, 270 moderate, and 44 minor. That number sounds scarier than it is: severity matters far more than the count, which is why the list on this page is ranked instead of alphabetical. Start at the top. The highest-ranked right now: Siberian Cocklebur, Activated Charcoal, Beer.
Which Acetaminophen, Aspirin supplement interactions are the most serious?
The 7 major-rated combinations — led by Siberian Cocklebur, Activated Charcoal, Beer, Danshen and Piracetam — deserve real caution: these are the ones generally best avoided, or used only with your prescriber watching. If you take any of them today, don't panic and don't stop anything abruptly — call your pharmacist first. Jump to the ranked list.
Can I take vitamins or supplements while on Acetaminophen, Aspirin?
That depends entirely on which supplement. The honest answer for Acetaminophen, Aspirin is in the ranked list above — and if what you take is a combination product with a dozen ingredients, don't check them one by one: photograph the label with our scanner and we'll check the whole thing at once. Try the label scanner or the interaction checker.
Do brands like Gemnisyn have the same supplement interactions as Acetaminophen, Aspirin?
Yes — Gemnisyn all contain Acetaminophen, Aspirin, 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.
Does Acetaminophen, Aspirin deplete any vitamins or nutrients?
It might — Acetaminophen, Aspirin has 5 reported nutrient-depletion associations in the research literature, which is a different question from interactions: instead of a supplement changing the drug, the drug may lower a nutrient over time. See the Acetaminophen, Aspirin nutrient depletion report for the specifics and what to discuss with your pharmacist.
What about Acetaminophen, Aspirin and my other medications?
This page covers Acetaminophen, Aspirin against supplements and herbal ingredients. Checking Acetaminophen, Aspirin 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.

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 September 22, 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.