Drug & supplement interaction

Ginger + Aspirin, Diphenhydramine, Phenylpropanolamine

Aspirin, Diphenhydramine, Phenylpropanolamine brand name: Alka Seltzer Plus Night Time Effervescent.

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

Ginger has a moderate interaction with Aspirin, Diphenhydramine, Phenylpropanolamine. Ginger may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.

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

Ginger and Aspirin, Diphenhydramine, Phenylpropanolamine

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

Moderate

ANTICOAGULANT/ANTIPLATELET DRUGS

Why this applies to Aspirin, Diphenhydramine, Phenylpropanolamine

Aspirin, Diphenhydramine, Phenylpropanolamine falls under ANTICOAGULANT/ANTIPLATELET DRUGS — the group Ginger interacts with.

Ginger may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs. However, research is conflicting.
Laboratory research suggests that ginger inhibits thromboxane synthetase and decreases platelet aggregation. However, this has not been demonstrated unequivocally in humans, with mixed results from clinical trials. Theoretically, excessive amounts of ginger might increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.
Severity Moderate Likelihood Possible Evidence B

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

The piece of this combo product that matters here is the aspirin. Aspirin already works by making your platelets less sticky, which is how it thins the blood. Ginger may nudge in the same direction by lightly reducing platelet clumping, so stacking the two could, in theory, add up to a bit more bleeding risk. Think easier bruising, nosebleeds, or a cut that takes longer to stop. The diphenhydramine and phenylpropanolamine parts aren't really the concern with ginger.

That said, the human evidence is mixed and far from settled. Normal cooking and tea amounts of ginger are very unlikely to cause trouble. Concentrated ginger supplements are where I'd be more cautious. Before pairing them with this aspirin product, check with your pharmacist or doctor.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Srivastava KC. Effect of onion and ginger consumption on platelet thromboxane production in humans. Prostaglandins Leukot Essent Fatty Acids 1989;35:183-5. PubMed
  2. Thomson M, Al-Qattan KK, Al-Sawan SM, et al. The use of ginger (Zingiber officinale Rosc.) as a potential anti-inflammatory and antithrombotic agent. Prostaglandins Leukot Essent Fatty Acids 2002;67:475-8. PubMed
  3. Backon J. Ginger as an antiemetic: possible side effects due to its thromboxane synthetase activity. Anaesthesia. 1991;46(8):705-6.. PubMed
  4. Abebe W. Herbal medication: potential for adverse interactions with analgesic drugs. J Clin Pharm Ther. 2002;27:391-401. PubMed
  5. Argento A, Tiraferri E, Marzaloni M. [Oral anticoagulants and medicinal plants. An emerging interaction]. Ann Ital Med Int. 2000;15:139-43.
  6. Marx W, McKavanagh D, McCarthy AL, Bird R, Ried K, Chan A, Isenring L. The effect of ginger (Zingiber officinale) on platelet aggregation: A systematic literature review. PLoS One. 2015;10(10):e0141119. PubMed

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

Ginger Also Interacts With Other Medications

Ginger has 873 moderate, 133 minor known drug interactions in our database — the Aspirin, Diphenhydramine, Phenylpropanolamine one above is one of them. If you take anything else, check it against the full list below.

Moderate 873 Minor 133 No known interaction 1,824 (incl. Aspirin, Diphenhydramine, Phenylpropanolamine)
Taking anything else?

Check Another of Your Medications Against Ginger

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

From our Q&A

Questions About Ginger or Aspirin, Diphenhydramine, Phenylpropanolamine

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Ginger or Aspirin, Diphenhydramine, Phenylpropanolamine, 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 Aspirin, Diphenhydramine, Phenylpropanolamine

This page covers Ginger only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Aspirin, Diphenhydramine, Phenylpropanolamine page lists 361 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: 17 major · 308 moderate · 36 minor.

From our pharmacist’s overview on the Aspirin, Diphenhydramine, Phenylpropanolamine page

“A cold remedy used for a few nights can still collide with supplements taken daily, and Alka Seltzer Plus Night Time (aspirin, diphenhydramine, phenylpropanolamine) is one to treat with genuine care. Its three ingredients thin the blood, sedate, and stimulate all at once, which is why 361 supplements and herbs are on file here.”

Reviewed by 2 · Jul 18, 2026

Open the Aspirin, Diphenhydramine, Phenylpropanolamine interaction page

One more smart check

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

We hold 9,640 real supplement products containing Ginger, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Ginger. Your product may carry other ingredients that interact with Aspirin, Diphenhydramine, Phenylpropanolamine too, on top of Ginger — 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 Ginger and Aspirin, Diphenhydramine, Phenylpropanolamine 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 Ginger
Top 5%

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

29 days ago today
Medication Aspirin, Diphenhydramine, Phenylpropanolamine
Steady interest

#1,788 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 Ginger

What is Ginger?

Ginger
  • Nausea and vomiting
  • Motion sickness
  • Morning sickness in pregnancy
  • Digestive upset
  • Menstrual cramps
  • Joint pain and inflammation

Ginger is a widely used culinary spice with a long history in traditional medicine, and it has the strongest evidence for helping with nausea and vomiting, including from motion sickness, pregnancy, and chemotherapy. It is generally safe in food and supplement amounts for most people, though it may cause mild stomach upset. Talk with your pharmacist or doctor before using ginger supplements, especially if you are pregnant, have a bleeding disorder, or take other medicines.

Read the full Ginger monograph & all interactions
Keep checking

Other Drugs & Ginger

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

0Major
873Moderate
133Minor
1,823No known interaction
873 Moderate 133 Minor 1,823 No interaction
Moderate

873 interactions

Showing 60 of 873 moderate interactions — see all 873 on the Ginger page.

Minor

133 interactions

Showing 60 of 133 minor interactions — see all 133 on the Ginger page.

No interaction 1,823 drugs checked — show the list

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

Showing the 60 most looked-up of 1,823 medications checked with no known interaction — see the full Ginger list.

See the full Ginger interactions page
See every supplement checked against Aspirin, Diphenhydramine, Phenylpropanolamine, 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
Ginger monograph › Uses, safety, and every drug interaction in one place Aspirin, Diphenhydramine, Phenylpropanolamine supplement interactions › Every supplement checked against Aspirin, Diphenhydramine, Phenylpropanolamine, 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 Ginger and Aspirin, Diphenhydramine, Phenylpropanolamine Together: Common Questions

Can you take Ginger with Aspirin, Diphenhydramine, Phenylpropanolamine?
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 Ginger and Aspirin, Diphenhydramine, Phenylpropanolamine 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, Diphenhydramine, Phenylpropanolamine and Ginger?

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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.