Drug & supplement interaction

Jiaogulan + Doxycycline

Doxycycline brand names: Vibra-Tabs, Vibramycin, Doryx, Monodox, Doxycin, and others.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Jiaogulan and Doxycycline in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the label for Doxycycline states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Jiaogulan and Doxycycline

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Doxycycline and Jiaogulan in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Jiaogulan safety at a glance

Jiaogulan overall Use caution Generally well tolerated in tea or supplement form for short periods, but long-term safety is not well studied.
Pregnancy Possibly Unsafe When used orally. Ginsenoside Rb1, which is identical to the jiaogulan constituent gypenoside 3, has teratogenic effects in animal models; avoid using. Read the full pregnancy detail
Breastfeeding Avoid Avoid while breastfeeding because there is not enough safety information.

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Doxycycline and Jiaogulan? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Doxycycline

Interactions in our licensed database are recorded against drug classes, not just single drug names. Doxycycline is filed under 9 classifications — including tetracycline antibiotics, antibiotic drugs, p-glycoprotein substrates. Jiaogulan has documented interactions with 3 drug classes — the most serious being anticoagulant/antiplatelet drugs (moderate), antidiabetes drugs (moderate) and immunosuppressants (moderate) — and none of Doxycycline’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Jiaogulan Does Interact With Other Medications

Jiaogulan has 327 moderate known drug interactions in our database — Doxycycline isn’t one of them. If you take anything else, check it against the full list below.

Moderate 327 No known interaction 2,503 (incl. Doxycycline)
Taking anything else?

Check Another of Your Medications Against Jiaogulan

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

What to actually watch for

No Interaction Found — But Data Suggests Jiaogulan and Doxycycline May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Dry mouth Additional detail

    Jiaogulan

    “Orally, jiaogulan may cause diarrhea and nausea (6,106651). Dry mouth has also been reported with oral jiaogulan use.”

    Jiaogulan · Natural Medicines adverse-effect record, reported in diarrhea.

    2 sources cited
    1. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
    2. 106651. Rao A, Clayton P, Briskey D. The effect of an orally-dosed Gynostemma pentaphyllum extract (ActivAMP®) on body composition in overweight, adult men and women: a double-blind, randomised, placebo-controlled study. J Hum Nutr Diet 2021.

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

  • Trouble sleeping Additional detail

    Jiaogulan

    “Orally, jiaogulan may cause dizziness and insomnia.”

    Jiaogulan · Natural Medicines adverse-effect record, reported in insomnia.

    1 source cited
    1. 106651. Rao A, Clayton P, Briskey D. The effect of an orally-dosed Gynostemma pentaphyllum extract (ActivAMP®) on body composition in overweight, adult men and women: a double-blind, randomised, placebo-controlled study. J Hum Nutr Diet 2021.

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

  • Diarrhea / Nausea Additional detail

    Jiaogulan

    “Orally, jiaogulan seems to be well tolerated when used for up to 4 months.

    Most Common Adverse Effects:

    Orally: Diarrhea and nausea.”

    Jiaogulan · Natural Medicines adverse-effect record, reported in diarrhea.

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

Reported for Jiaogulan but not commonly for Doxycycline: dizziness.

Effects for Doxycycline come from the ADVERSE REACTIONS section of its FDA label; effects for Jiaogulan come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Jiaogulan in Pregnancy & Breastfeeding

Pregnancy Possibly Unsafe

When used orally. Ginsenoside Rb1, which is identical to the jiaogulan constituent gypenoside 3, has teratogenic effects in animal models; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some Doxycycline Products Have a Food Rule — Jiaogulan Should Not Break It

At least one FDA label for a product containing Doxycycline says to take it on an empty stomach. Most supplements — Jiaogulan included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Doxycycline on its own and move Jiaogulan to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Doxycycline products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

2 DOSAGE AND ADMINISTRATION Take one Doxycycline capsule (40 mg) once daily in the morning on an empty stomach, preferably at least one hour prior to or two hours after meals.

From the Dosage and Administration section of the FDA label we read for Doxycycline — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Overlapping uses

What Doxycycline Is Prescribed For, and What Jiaogulan Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Doxycycline is a prescription medicine with approved uses on its FDA label. Jiaogulan is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Doxycycline is prescribed for: Doxycycline belongs to the tetracycline family of antibiotics. It's prescribed for many types of bacterial infections, including respiratory tract infections, sexually transmitted infections (STIs), tick-borne illnesses like Rocky Mountain spotted fever, and eye infections. It's also used to help prevent malaria and, in some cases, as a helper treatment for severe acne. In situations where penicillin-type antibiotics can't be used — due to allergy, for example — doxycycline can step in as an alternative.

Read the rest of what Doxycycline is prescribed for

It should only be used for infections that are proven or strongly suspected to be caused by bacteria.

Jiaogulan has been studied for:

  • Respiratory tract infections studied, not established Jiaogulan has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Jiaogulan for respiratory tract infections

    Although there has been interest in using oral jiaogulan for various respiratory tract infections, including bronchitis, rhinosinusitis, and the common cold, there is insufficient reliable information about the clinical effects of jiaogulan for these conditions.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Doxycycline on your own; if you are taking Jiaogulan for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Jiaogulan or Doxycycline

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

This page covers Jiaogulan only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Doxycycline page lists 166 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Oleander (major) and Siberian Cocklebur (major).

By severity: 7 major · 139 moderate · 20 minor.

From our pharmacist’s overview on the Doxycycline page

“St. John's wort is the supplement I would flag first for anyone on doxycycline (Vibramycin, Doryx), because it can speed the antibiotic out of the body and leave an infection undertreated.”

Reviewed by 2 · Jul 18, 2026

Open the Doxycycline interaction page

One more smart check

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

We hold 452 real supplement products containing Jiaogulan, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Jiaogulan. Even though Jiaogulan itself has no known interaction with Doxycycline, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Jiaogulan and Doxycycline 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 Jiaogulan
Top half

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

29 days ago today
Medication Doxycycline
Top 5%

#37 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.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Jiaogulan reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Jiaogulan and Doxycycline records this page draws on were last updated July 11, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Jiaogulan

What is Jiaogulan?

Jiaogulan
  • Fatigue and stress (adaptogen)
  • Blood sugar support
  • High blood pressure
  • High cholesterol
  • Immune and general wellness

Jiaogulan is a climbing vine used in traditional Chinese medicine as an adaptogen and for heart, blood sugar, and cholesterol support. Early human and animal studies are promising for some uses like metabolism and blood pressure, but the overall evidence is still limited. Talk with your pharmacist or doctor before starting it, especially if you have a health condition or take medication.

Gynostemma pentaphyllum · Cucurbitaceae · Leaves and aerial parts · Tea, capsules, tablets, liquid extracts, powders

An interaction check asks whether these two react with each other — it does not ask whether Jiaogulan is a good idea for someone in your situation. Here is what our Jiaogulan record says about it on its own.

Jiaogulan: dosing

There is no official, standardized dose of jiaogulan. The right amount can vary depending on the product, its strength, and whether it is a tea, capsule, or extract.The safest approach is to follow the directions on the product label and not to exceed the recommended amount.

From our Jiaogulan monograph — the full record covers uses, side effects and every documented interaction.

Read the full Jiaogulan monograph & all interactions
Medication

About Doxycycline

What Is Doxycycline Used For?

Brand names: Vibra-Tabs, Vibramycin, Doryx, Monodox, Doxycin, Doxy, Doxylin, Doxy-D, Periostat, Doxycycline Injection, Oracea, Xyrosa

Doxycycline belongs to the tetracycline family of antibiotics. It's prescribed for many types of bacterial infections, including respiratory tract infections, sexually transmitted infections (STIs), tick-borne illnesses like Rocky Mountain spotted fever, and eye infections. It's also used to help prevent malaria and, in some cases, as a helper treatment for severe acne.

In situations where penicillin-type antibiotics can't be used — due to allergy, for example — doxycycline can step in as an alternative. It should only be used for infections that are proven or strongly suspected to be caused by bacteria.

See full Doxycycline drug information
Keep checking

Other Drugs & Jiaogulan

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

0Major
327Moderate
0Minor
2,502No known interaction
327 Moderate 2,502 No interaction
Moderate

327 interactions

Showing 60 of 327 moderate interactions — see all 327 on the Jiaogulan page.

No interaction 2,502 drugs checked — show the list

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

Showing the 60 most looked-up of 2,502 medications checked with no known interaction — see the full Jiaogulan list.

See the full Jiaogulan interactions page
See every supplement checked against Doxycycline, ranked by severity
Evidence & sources

Jiaogulan References

The 8 references that drive our Jiaogulan monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Tan H, Liu ZL, Liu MJ. [Antithrombotic effect of Gynostemma pentaphyllum]. Zhingguo Zhong Xi Yi Jie He Za Zhi 1993;13:278-80.
  3. Chan LY, Chiu PY, Lau TK. An in-vitro study of ginsenoside Rb(1)-induced teratogenicity using a whole rat embryo culture model. Hum Reprod 2003;18:2166-8..
  4. Huyen VT, Phan DV, Thang P, Hoa NK, Ostenson CG. Gynostemma pentaphyllum Tea Improves Insulin Sensitivity in Type 2 Diabetic Patients. J Nutr Metab. 2013;2013:765383. doi: 10.1155/2013/765383.
  5. Li Y, Lin W, Huang J, Xie Y, Ma W. Anti-cancer effects of Gynostemma pentaphyllum (Thunb.) Makino (Jiaogulan). Chin Med. 2016 Sep 27;11:43. Review. PubMed
  6. Huyen VT, Phan DV, Thang P, Ky PT, Hoa NK, Ostenson CG. Antidiabetic effect of add-on Gynostemma pentaphyllum extract therapy with sulfonylureas in type 2 diabetic patients. Evid Based Complement Alternat Med 2012; 452313.
  7. Huyen VT, Phan DV, Thang P, Hoa NK, Ostenson CG. Antidiabetic effect of Gynostemma pentaphyllum tea in randomly assigned type 2 diabetic patients. Horm Metab Res. 2010;42(5):353-7.
  8. Rao A, Clayton P, Briskey D. The effect of an orally-dosed Gynostemma pentaphyllum extract (ActivAMP®) on body composition in overweight, adult men and women: a double-blind, randomised, placebo-controlled study. J Hum Nutr Diet 2021.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Jiaogulan and Doxycycline Together: Common Questions

Is it safe to take Jiaogulan with Doxycycline?
We do not list a known interaction between Jiaogulan and Doxycycline. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Jiaogulan and Doxycycline have any of the same side effects?
Yes — our sources link each of them separately to 4 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Should I take Jiaogulan and Doxycycline at the same time of day?
At least one FDA label for a product containing Doxycycline says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Doxycycline on its own and move Jiaogulan to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
Are Jiaogulan and Doxycycline used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Jiaogulan in each. That is a conversation for your prescriber, especially if Doxycycline is being adjusted to a target.
How was the Jiaogulan and Doxycycline combination checked?
Interactions in our licensed database are recorded against drug classes. Doxycycline is filed under 9 classifications, and Jiaogulan has documented interactions with 3 drug classes — none of Doxycycline's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Jiaogulan interact with any other medications?
Yes. Jiaogulan has 327 documented drug interactions in our database — Doxycycline is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Doxycycline interact with any supplements?
Yes. Doxycycline has documented interactions with 166 supplements in our database — Jiaogulan is not one of them. The Doxycycline interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Jiaogulan monograph Uses, safety profile, and every drug interaction in one place Doxycycline drug information The full plain-English guide to this medication Doxycycline supplement interactions Every supplement checked against Doxycycline, 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 References The 8 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Doxycycline and Jiaogulan?

Our pharmacists answer your medication & supplement questions — free.

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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.