Herb & supplement monograph

Panax Ginseng Drug Interactions, Uses, Effectiveness, Safety & More

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS ·Updated July 2026

What is this page for?

First and foremost: how Panax Ginseng interacts with medications. The heart of this page is the interaction list — every drug Panax Ginseng is known to interact with, and how serious each one is.

But these pages have grown well beyond that into a full monograph — what Panax Ginseng is, what people use it for and how strong the evidence is, its safety and side effects, and answers to the questions we’re asked most — written and reviewed by the clinical staff at HelloPharmacist. It’s educational information from our licensed clinical databases, not medical advice, and we don’t sell or endorse products. Our editorial policy

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Panax Ginseng Drug Interactions: The Bottom Line

From the HelloPharmacist Editorial Team · Updated July 2026

Based on the available evidence, the overall risk of a clinically significant Panax Ginseng drug interaction appears low for most people, though a few combinations deserve closer attention. None of the listed interactions are rated major, and most rest on lab findings or theory rather than solid human evidence.

Interactions deserving the most attention

The best-documented concern involves diabetes medications, including insulin, because human studies suggest Panax ginseng can lower blood sugar, so glucose should be watched more closely when the two are combined. Ginseng has also caused insomnia, tremors, and mood changes when taken with MAOI antidepressants such as phenelzine. Human research shows it can meaningfully lower levels of the sedative midazolam, and its own stimulant effects can add to caffeine or other stimulants.

What the rest of the list means

Panax ginseng appears alongside a very long list of medications mainly because it may affect enzymes the body uses to clear many drugs, so most of these pairings are theoretical rather than proven problems. In fact, several predicted effects have not held up in people; human research suggests ginseng does not meaningfully increase bleeding risk with blood thinners such as warfarin.

Check your medications against Panax Ginseng

Based on HelloPharmacist’s Panax Ginseng interaction data and reviewed under our editorial standards.

Interaction report

Drugs that interact with Panax Ginseng

1132 medications have a known interaction with Panax Ginseng, graded by severity. Select any drug for the full evidence-based detail.

Don’t want to scroll the list? Just ask.

Tell us the medications you take and we’ll check each one against Panax Ginseng using our pharmacist-reviewed interaction data.

AI summaries are generated from our Panax Ginseng interaction data for education only — always confirm with your pharmacist. How we use AI

2,830 drugs

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 drug listed above links to the full report for that exact Panax Ginseng combination — clinical detail, likelihood, evidence level, and citations.
Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

The big picture

The kinds of drugs Panax Ginseng affects

Every type of medication (drug category) Panax Ginseng is known to interact with. Open any category for the detail — or search your exact drug in the checker above.

All 20 drug categories Panax Ginseng interacts with

Anticoagulant/antiplatelet DrugsAntidiabetes DrugsCaffeineCytochrome P450 2d6 (cyp2d6) SubstratesCytochrome P450 3a4 (cyp3a4) SubstratesEstrogensFurosemide (lasix)Imatinib (gleevec)ImmunosuppressantsInsulinMidazolam (versed)Monoamine Oxidase Inhibitors (maois)Nifedipine (procardia)Qt Interval-prolonging DrugsRaltegravir (isentress)Selegiline (eldepryl)Stimulant DrugsWarfarin (coumadin)Fexofenadine (allegra)Lopinavir/ritonavir (kaletra)

Anticoagulant/Antiplatelet Drugs

Although Panax ginseng has shown antiplatelet effects in the laboratory, it is unlikely to increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro evidence suggests that ginsenoside constituents in Panax ginseng might decrease platelet aggregation. However, research in humans suggests that ginseng does not affect platelet aggregation. Animal research indicates low oral bioavailability of Rb1 and rapid elimination of Rg1, which might explain the discrepancy between in vitro and human research. Until more is known, use with caution in patients concurrently taking anticoagulant or antiplatelet drugs.

Likelihood Unlikely Evidence B

Antidiabetes Drugs

Theoretically, taking Panax ginseng with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research suggests that Panax ginseng might decrease blood glucose levels. Monitor blood glucose levels closely.

Likelihood Probable Evidence B

Caffeine

Theoretically, taking Panax ginseng with caffeine might increase the risk of adverse stimulant effects.
Panax ginseng has been shown to have stimulant effects. Theoretically, caffeine might have an additive effect on the stimulant effects of Panax ginseng.

Likelihood Probable Evidence B

Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, Panax ginseng might increase levels of drugs metabolized by CYP2D6. However, research is conflicting.
There is some evidence that Panax ginseng can inhibit the CYP2D6 enzyme by approximately 6%. In addition, in animal research, Panax ginseng inhibits the metabolism of dextromethorphan, a drug metabolized by CYP2D6, by a small amount. However, contradictory research suggests Panax ginseng might not inhibit CYP2D6. Until more is known, use Panax ginseng cautiously in patients taking drugs metabolized by these enzymes.

Likelihood Possible Evidence B

Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, Panax ginseng might increase or decrease levels of drugs metabolized by CYP3A4.
Panax ginseng may affect the clearance of drugs metabolized by CYP3A4. One such drug is imatinib. Inhibition of CYP3A4 was believed to be responsible for a case of imatinib-induced hepatotoxicity. In contrast, Panax ginseng has been shown to increase the clearance of midazolam, another drug metabolized by CYP3A4. Clinical research shows that Panax ginseng can reduce midazolam area under the curve by 44%, maximum plasma concentration by 26%, and time to reach maximum plasma concentration by 29%. Midazolam metabolism was also increased in animals given Panax ginseng. Until more is known, use Panax ginseng cautiously in combination with CYP3A4 substrates.

Likelihood Possible Evidence B

Estrogens

Theoretically, concomitant use of large amounts of Panax ginseng might interfere with hormone replacement therapy.
Laboratory research and some case reports suggest that Panax ginseng can have estrogenic effects due to competition for estrogen receptors. The estrogenic activity is attributed to the ginsenoside constituents of Panax ginseng.

Likelihood Possible Evidence D

Furosemide (Lasix)

Theoretically, Panax ginseng might reduce the effects of furosemide.
There is some concern that Panax ginseng might contribute to furosemide resistance. There is one case of resistance to furosemide diuresis in a patient taking a germanium-containing ginseng product.

Likelihood Possible Evidence D

Imatinib (Gleevec)

Theoretically, Panax ginseng might increase the effects and adverse effects of imatinib.
A case of imatinib-induced hepatotoxicity has been reported for a 26-year-old male with chronic myelogenous leukemia stabilized on imatinib for 7 years. The patient took imatinib 400 mg along with a Panax ginseng-containing energy drink daily for 3 months. Since imatinib-associated hepatotoxicity typically occurs within 2 years of initiating therapy, it is believed that Panax ginseng affected imatinib toxicity though inhibition of cytochrome P450 3A4. CYP3A4 is the primary enzyme involved in imatinib metabolism.

Likelihood Possible Evidence D

Immunosuppressants

Theoretically, Panax ginseng use might interfere with immunosuppressive therapy.
Panax ginseng might have immune system stimulating properties.

Likelihood Possible Evidence B

Insulin

Theoretically, taking Panax ginseng with insulin might increase the risk of hypoglycemia.
Clinical research suggests that Panax ginseng might decrease blood glucose levels. Insulin dose adjustments might be necessary in patients taking Panax ginseng; use with caution.

Likelihood Probable Evidence B

Midazolam (Versed)

Theoretically, Panax ginseng may increase the clearance of midazolam.
Midazolam is metabolized by cytochrome P450 3A4 (CYP3A4). Clinical research suggests that Panax ginseng can reduce midazolam area under the curve by 44%, maximum plasma concentration by 26%, and time to reach maximum plasma concentration by 29%. Midazolam metabolism was also increased in animals given Panax ginseng.

Likelihood Probable Evidence B

Monoamine Oxidase Inhibitors (Maois)

Theoretically, Panax ginseng can interfere with MAOI therapy.
Concomitant use of Panax ginseng with phenelzine (Nardil) is associated with insomnia, headache, tremors, and hypomania.

Likelihood Probable Evidence D

Nifedipine (Procardia)

Theoretically, taking Panax ginseng with nifedipine might increase serum levels of nifedipine and the risk of hypotension.
Preliminary clinical research shows that concomitant use can increase serum levels of nifedipine in healthy volunteers. This might cause the blood pressure lowering effects of nifedipine to be increased when taken concomitantly with Panax ginseng.

Likelihood Possible Evidence B

Qt Interval-Prolonging Drugs

Theoretically, Panax ginseng has an additive effect with drugs that prolong the QT interval and potentially increase the risk of ventricular arrhythmias. However, research is conflicting.
Clinical research shows that short-term use of Panax ginseng can increase the QT interval. However, no changes in QT interval have been identified with prolonged use.

Likelihood Possible Evidence B

Raltegravir (Isentress)

Theoretically, taking Panax ginseng with raltegravir might increase the risk of liver toxicity.
A case report suggests that concomitant use of Panax ginseng with raltegravir can increase serum levels of raltegravir, resulting in elevated liver enzymes levels.

Likelihood Possible Evidence D

Selegiline (Eldepryl)

Theoretically, Panax ginseng might increase or decrease levels of selegiline, possibly altering the effects and side effects of selegiline.
Animal research shows that taking selegiline with a low dose of Panax ginseng extract (1 gram/kg) reduces selegiline bioavailability, while taking a high dose of Panax ginseng extract (3 grams/kg) increases selegiline bioavailability. More research is needed to confirm these effects.

Likelihood Possible Evidence D

Stimulant Drugs

Theoretically, taking Panax ginseng with stimulant drugs might increase the risk of adverse stimulant effects.
Panax ginseng has been shown to have stimulant effects.

Likelihood Possible Evidence D

Warfarin (Coumadin)

Panax ginseng might affect the clearance of warfarin. However, this interaction appears to be unlikely.
There has been a single case report of decreased effectiveness of warfarin in a patient who also took Panax ginseng. However, it is questionable whether Panax ginseng was the cause of this decrease in warfarin effectiveness. Some research in humans and animals suggests that Panax ginseng does not affect the pharmacokinetics of warfarin. However, other research in humans suggests that Panax ginseng might modestly increase the clearance of the S-warfarin isomer. More evidence is needed to determine whether Panax ginseng causes a significant interaction with warfarin.

Likelihood Unlikely Evidence B

Fexofenadine (Allegra)

Theoretically, Panax ginseng might decrease blood levels of oral or intravenous fexofenadine.
Animal research suggests that taking Panax ginseng in combination with oral or intravenous fexofenadine may reduce the bioavailability of fexofenadine. Some scientists have attributed this effect to the ability of Panax ginseng to increase the expression of P-glycoprotein.

Likelihood Possible Evidence D

Lopinavir/Ritonavir (Kaletra)

Although Panax ginseng has demonstrated variable effects on cytochrome P450 3A4 (CYP3A4), which metabolizes lopinavir, Panax ginseng is unlikely to alter levels of lopinavir/ritonavir.
Lopinavir is metabolized by CYP3A4 and is administered with the CYP3A4 inhibitor ritonavir to increase its plasma concentrations. Panax ginseng has shown variable effects on CYP3A4 activity in humans. However, taking Panax ginseng (Vitamer Laboratories) 500 mg twice daily for 14 days did not alter the pharmacokinetics of lopinavir/ritonavir in 12 healthy volunteers.

Likelihood Unlikely Evidence B

Monograph

Panax Ginseng: Uses, Safety & Side Effects

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Reviewed July 2026 ·

The bottom line

Panax ginseng is a popular traditional herb used to boost energy, ease stress, and support overall wellness, though scientific evidence is mixed and mostly preliminary. It is generally well tolerated for short-term use in healthy adults, but it can cause side effects like trouble sleeping and may not be safe during pregnancy or breastfeeding. Always check with your pharmacist or doctor before starting it, especially if you have a medical condition or take other medicines.

Scientific name: Panax ginseng
Family: Araliaceae
Part used: Root
Common forms: Capsules, tablets, dried root, powder, tea, liquid extracts, energy drinks

People commonly use it for

Boosting energy and fighting fatigue
Improving mental focus and memory
Coping with stress (adaptogen)
Erectile dysfunction
Supporting immune health
Blood sugar support

Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.

Safety at a glance

OverallUse caution

Generally well tolerated short-term in healthy adults, but quality and long-term safety vary.

PregnancyPossibly Unsafe

When used orally. Ginsenoside Rb1, an active constituent of Panax ginseng, has teratogenic effects in animal models; avoid using.

Read the full pregnancy detail

BreastfeedingInsufficient reliable information

Insufficient reliable information available; avoid using.

Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Jump to a section

Overview

Panax ginseng is a slow-growing plant native to eastern Asia, including Korea and parts of China and Siberia. It is often called Asian ginseng, Chinese ginseng, or Korean ginseng. It is not the same as American ginseng (Panax quinquefolius) or Siberian ginseng (Eleutherococcus), even though the names sound alike.

The root is the part used in supplements. It has been a key part of traditional Chinese medicine for centuries. Depending on how the root is processed, it may be sold as "white ginseng" (dried) or "red ginseng" (steamed and dried).

People take Panax ginseng to boost energy, sharpen the mind, handle stress, and support general health. It is often called an adaptogen, a term used for herbs thought to help the body adapt to physical and mental stress.

How it works

The main active compounds in Panax ginseng are called ginsenosides (also known as panaxosides). Different types of ginsenosides may have different effects in the body, which is one reason ginseng's actions are complex and not fully understood.

In laboratory and animal studies, ginsenosides appear to affect the immune system, hormones, blood sugar, and chemical signals in the brain and blood vessels. As an adaptogen, ginseng is theorized to help balance the body's stress response, but this idea is based mostly on traditional use and early research rather than strong clinical proof.

It is important to know that much of what we understand about how ginseng works comes from lab and animal studies. These results do not always carry over to people.

Effectiveness

Does Panax Ginseng work?

Here’s what the research actually shows for each use — graded by Natural Medicines and reviewed by Dr. Brian Staiger, PharmD.

Evidence overview · 64 uses evaluated

5 Possibly effective 1 Leans ineffective 58 Insufficient evidence

How to read these evidence grades

Natural Medicines’ 7-point scale. We show each rating’s label word-for-word.

1EffectiveStrong, consistent evidence it works.

2Likely EffectiveGood evidence, though not yet conclusive.

3Possibly EffectiveSome evidence suggests a benefit.

4Possibly IneffectiveSome evidence it may not help.

5Likely IneffectiveFairly strong evidence it doesn’t help.

6IneffectiveStrong evidence it doesn’t work.

7Insufficient Reliable Evidence to RateToo little research to say either way.

Possibly Effective Cognitive function