Drug & supplement interaction

Panax Notoginseng + Aspirin, Codeine Phosphate, Methocarbamol

Aspirin, Codeine Phosphate, Methocarbamol brand name: Robaxisal C.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Panax Notoginseng has a moderate interaction with Aspirin, Codeine Phosphate, Methocarbamol. Theoretically, taking Panax notoginseng concomitantly with aspirin may increase the risk of adverse effects from both products.

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

Panax Notoginseng and Aspirin, Codeine Phosphate, Methocarbamol

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

Moderate

ASPIRIN

Theoretically, taking Panax notoginseng concomitantly with aspirin may increase the risk of adverse effects from both products.
Animal research shows that taking Panax notoginseng extract with aspirin increases blood levels of salicylic acid by approximately 50% and blood levels of Panax notoginseng by 75% to 196%. This effect may be due to increased absorption of both products.
Severity Moderate Likelihood Possible Evidence D

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.

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

Your Robaxisal C combo contains aspirin, and that's the piece that matters here. Panax notoginseng is itself an herb people use to affect bleeding and circulation, so pairing it with aspirin stacks two things that can both thin the blood a bit. On top of that, animal studies hint that the two may boost each other's absorption, with aspirin's salicylate levels rising around 50 percent. That could mean more aspirin-type effects like stomach upset, easier bruising, or bleeding that's slower to stop.

Keep in mind this is theoretical and comes from lab and animal work, not solid human studies, so it isn't a reason to panic. Still, since both touch bleeding, I'd run this by your pharmacist or doctor before combining them, especially if you're heading into surgery or already bruise easily. Don't change your medicine on your own.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Tian Z, Pang H, Du S, Lu Y, Zhang L, Wu H, Guo S, Wang M, Zhang Q. Effect of Panax notoginseng saponins on the pharmacokinetics of aspirin in rats. J Chromatogr B Analyt Technol Biomed Life Sci. 2017 Jan 1;1040:136-143. PubMed
  2. Tian Z, Pang H, Zhang Q, et al. Effect of aspirin on the pharmacokinetics and absorption of panax notoginsengsaponins. J Chromatogr B Analyt Technol Biomed Life Sci. 2018 Jan 2;1074-75.

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

Panax Notoginseng Also Interacts With Other Medications

Panax Notoginseng has 206 moderate known drug interactions in our database — the Aspirin, Codeine Phosphate, Methocarbamol one above is one of them. If you take anything else, check it against the full list below.

Moderate 206 No known interaction 2,624 (incl. Aspirin, Codeine Phosphate, Methocarbamol)
Taking anything else?

Check Another of Your Medications Against Panax Notoginseng

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

Everything else you take

See Every Supplement That Interacts With Aspirin, Codeine Phosphate, Methocarbamol

This page covers Panax Notoginseng only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Aspirin, Codeine Phosphate, Methocarbamol page lists 328 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), Asarabacca (major), Beer (major) and Danshen (major).

By severity: 12 major · 282 moderate · 34 minor.

From our pharmacist’s overview on the Aspirin, Codeine Phosphate, Methocarbamol page

“Alcohol is the single riskiest thing to combine with Robaxisal C (aspirin, codeine phosphate, and methocarbamol). Beer and wine both carry major ratings backed by solid human evidence, because codeine and methocarbamol already slow breathing and reflexes, and alcohol deepens that sedation.”

Reviewed by 2 · Jul 18, 2026

Open the Aspirin, Codeine Phosphate, Methocarbamol interaction page

One more smart check

Taking Panax Notoginseng as Part of a Dietary Supplement Product? Check It for Interactions

We hold 55 real supplement products containing Panax Notoginseng, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Panax Notoginseng. Your product may carry other ingredients that interact with Aspirin, Codeine Phosphate, Methocarbamol too, on top of Panax Notoginseng — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Panax Notoginseng and Aspirin, Codeine Phosphate, Methocarbamol 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 Panax Notoginseng
Top half

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

29 days ago today
Medication Aspirin, Codeine Phosphate, Methocarbamol
Top 25%

#594 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 Panax Notoginseng

What is Panax Notoginseng?

Panax Notoginseng
  • Bleeding and bruising
  • Heart and circulation health
  • High blood pressure
  • Chest pain (angina)
  • Inflammation and swelling

Panax notoginseng (sanqi or tienchi ginseng) is a traditional Chinese herb most often used to help with bleeding, bruising, and circulation. Human evidence for these uses is limited and mostly early, so it should not replace proven treatments. Talk to a pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.

Read the full Panax Notoginseng monograph & all interactions
Keep checking

Other Drugs & Panax Notoginseng

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

0Major
206Moderate
0Minor
2,623No known interaction
206 Moderate 2,623 No interaction
Moderate

206 interactions

Showing 60 of 206 moderate interactions — see all 206 on the Panax Notoginseng page.

No interaction 2,623 drugs checked — show the list

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

Showing the 60 most looked-up of 2,623 medications checked with no known interaction — see the full Panax Notoginseng list.

See the full Panax Notoginseng interactions page
See every supplement checked against Aspirin, Codeine Phosphate, Methocarbamol, 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

Keep exploring
Panax Notoginseng monograph › Uses, safety, and every drug interaction in one place Aspirin, Codeine Phosphate, Methocarbamol supplement interactions › Every supplement checked against Aspirin, Codeine Phosphate, Methocarbamol, 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 Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Panax Notoginseng and Aspirin, Codeine Phosphate, Methocarbamol Together: Common Questions

Can you take Panax Notoginseng with Aspirin, Codeine Phosphate, Methocarbamol?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Panax Notoginseng and Aspirin, Codeine Phosphate, Methocarbamol interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Aspirin, Codeine Phosphate, Methocarbamol and Panax Notoginseng?

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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.