Drug & supplement interaction

Red Raspberry + Doxycycline

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

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Oct 4, 2026
The bottom line No known interaction

We found no known interaction between Red Raspberry 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

Red Raspberry 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 Red Raspberry 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.

Red Raspberry safety at a glance

Red Raspberry overall Use caution Generally well tolerated by most adults, but evidence on safety is limited.
Pregnancy Likely Safe When the fruit is used orally in amounts commonly found in foods. Read the full pregnancy detail
Breastfeeding Likely Safe When the fruit is used orally in amounts commonly found in foods. There is insufficient reliable information available about the safety of red raspberry leaf; a... Read the full breastfeeding detail

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 Red Raspberry? 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. Red Raspberry has documented interactions with 2 drug classes — the most serious being anticoagulant/antiplatelet drugs (moderate) and insulin (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

Red Raspberry Does Interact With Other Medications

Red Raspberry has 135 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 135 No known interaction 2,695 (incl. Doxycycline)
Taking anything else?

Check Another of Your Medications Against Red Raspberry

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

What to actually watch for

No Interaction Found — But Data Suggests Red Raspberry 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.

  • Stomach upset / Diarrhea Additional detail

    Red Raspberry

    “Orally, red raspberry may cause gastrointestinal upset, diarrhea, and epigastric pain.”

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

    1 source cited
    1. 112127. Henrotin Y, Cozannet RL, Fança-Berthon P, et al. Rubus idaeus extract improves symptoms in knee osteoarthritis patients: results from a phase II double-blind randomized controlled trial. BMC Musculoskelet Disord 2022;23(1):650. PubMed

    Doxycycline

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

Reported for Red Raspberry but not commonly for Doxycycline: shortness of breath and wheezing.

Effects for Doxycycline come from the ADVERSE REACTIONS section of its FDA label; effects for Red Raspberry 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

Red Raspberry in Pregnancy & Breastfeeding

Pregnancy Likely Safe

When the fruit is used orally in amounts commonly found in foods.

Pregnancy Possibly Safe

When red raspberry leaf is used orally and appropriately in medicinal amounts during late pregnancy under the supervision of a healthcare provider. Red raspberry leaf is used by nurse midwives to facilitate delivery. There is some evidence that red raspberry leaf in doses of up to 2.4 grams daily, beginning at 32 weeks' gestation and continued until delivery, can be safely used for this purpose. Make sure patients do not use red raspberry leaf without the guidance of a healthcare professional.

Pregnancy Likely Unsafe

When red raspberry leaf is used orally in medicinal amounts throughout pregnancy or for self-treatment. Red raspberry leaf might have estrogenic effects. These effects can adversely affect pregnancy. Tell pregnant patients not to use red raspberry leaf at any time during pregnancy without the close supervision of a healthcare provider.

Lactation Likely Safe

When the fruit is used orally in amounts commonly found in foods. There is insufficient reliable information available about the safety of red raspberry leaf; 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 — Red Raspberry Should Not Break It

At least one FDA label for a product containing Doxycycline says to take it on an empty stomach. Most supplements — Red Raspberry 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 Red Raspberry 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 Red Raspberry 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. Red Raspberry is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Doxycycline is prescribed for: Doxycycline is an antibiotic. It treats infections caused by bacteria, and it does not work on viruses. Several products carry a broad list of uses, including rickettsial infections, sexually transmitted infections, respiratory tract infections, eye infections, and anthrax after exposure. Some product labels also list malaria prevention, and use as an add-on treatment for acute intestinal amebiasis and severe acne.

Read the rest of what Doxycycline is prescribed for

Doxycycline for Injection (Doxy 100, intravenous) is approved for infections caused by a listed set of microorganisms. Doxycycline capsules in the Oracea-type low-dose form are described in the evidence for inflammatory lesions of rosacea.

Red Raspberry has been studied for:

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

    Red Raspberry for respiratory tract infections

    Although there has been interest in using oral red raspberry leaf for respiratory tract infections, there is insufficient reliable information about the clinical effects of red raspberry for this purpose.

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 Red Raspberry for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Red Raspberry 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 Red Raspberry 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 Red Raspberry 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 Red Raspberry as Part of a Dietary Supplement Product? Check It for Interactions

We hold 1,303 real supplement products containing Red Raspberry, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Red Raspberry. Even though Red Raspberry 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 Red Raspberry 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 Red Raspberry
Top 25%

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

29 days ago today
Medication Doxycycline
Top 5%

#67 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 Red Raspberry reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Red Raspberry 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 Red Raspberry

What is Red Raspberry?

  • Pregnancy and labor support
  • Menstrual cramps
  • Digestive upset and diarrhea
  • Sore throat and mouth rinse
  • Antioxidant support

Red raspberry leaf is a traditional herbal remedy most often used as a tea in late pregnancy and for menstrual discomfort, but solid scientific evidence for these uses is limited. It is generally considered well tolerated by most adults, but pregnant people should talk with their doctor or midwife before using it.

Rubus idaeus · Rosaceae · Leaves and fruit · Tea, capsules, tablets, dried leaf, liquid extract

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

Red Raspberry: dosing

There is no official or standardized dose for red raspberry leaf. It is most commonly taken as a tea made from dried leaves, and also comes in capsules, tablets, and liquid extracts.Because products vary in strength, the best approach is to follow the directions on the product label.

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

Read the full Red Raspberry 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 is an antibiotic. It treats infections caused by bacteria, and it does not work on viruses.

Several products carry a broad list of uses, including rickettsial infections, sexually transmitted infections, respiratory tract infections, eye infections, and anthrax after exposure. Some product labels also list malaria prevention, and use as an add-on treatment for acute intestinal amebiasis and severe acne. Doxycycline for Injection (Doxy 100, intravenous) is approved for infections caused by a listed set of microorganisms. Doxycycline capsules in the Oracea-type low-dose form are described in the evidence for inflammatory lesions of rosacea.

See full Doxycycline drug information
Keep checking

Other Drugs & Red Raspberry

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

0Major
135Moderate
0Minor
2,694No known interaction
135 Moderate 2,694 No interaction
Moderate

135 interactions

Showing 60 of 135 moderate interactions — see all 135 on the Red Raspberry page.

No interaction 2,694 drugs checked — show the list

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

Showing the 60 most looked-up of 2,694 medications checked with no known interaction — see the full Red Raspberry list.

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

Red Raspberry References

The 8 references that drive our Red Raspberry 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. Eagon PK, Elm MS, Hunter DS, et al. Medicinal herbs: modulation of estrogen action. Era of Hope Mtg, Dept Defense; Breast Cancer Res Prog, Atlanta, GA 2000;Jun 8-11.
  2. Parsons M, Simpson M, Ponton T. Raspberry leaf and its effects on labour: safety and efficacy. Aust Coll Midwives Inc J 1999;12:20-5.
  3. Simpson M, Parsons M, Greenwood J, Wade K. Raspberry leaf in pregnancy: its safety and efficacy in labor. J Midwifery Womens Health 2001;46:51-9.. PubMed
  4. Mullen W, McGinn J, Lean ME, et al. Ellagitannins, flavonoids, and other phenolics in red raspberries and their contribution to antioxidant capacity and vasorelaxation properties. J Agric Food Chem 2002;50:5191-6.. PubMed
  5. Sherson, D., Andersen, B., Hansen, I., and Kjoller, H. Occupational asthma due to freeze-dried raspberry. Ann Allergy Asthma Immunol. 2003;90(6):660-663. PubMed
  6. Cheang KI, Nguyen TT, Karjane NW, Salley KE. Raspberry Leaf and Hypoglycemia in Gestational Diabetes Mellitus. Obstet Gynecol. 2016;128(6):1421-4. PubMed
  7. Dudzinska D, Bednarska K, Boncler M, Luzak B, Watala C. The influence of Rubus idaeus and Rubus caesius leaf extracts on platelet aggregation in whole blood. Cross-talk of platelets and neutrophils. Platelets. 2016;27(5):433-9.
  8. Henrotin Y, Cozannet RL, Fança-Berthon P, et al. Rubus idaeus extract improves symptoms in knee osteoarthritis patients: results from a phase II double-blind randomized controlled trial. BMC Musculoskelet Disord 2022;23(1):650. PubMed

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 Red Raspberry and Doxycycline Together: Common Questions

Is it safe to take Red Raspberry with Doxycycline?
We do not list a known interaction between Red Raspberry 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 Red Raspberry and Doxycycline have any of the same side effects?
Yes — our sources link each of them separately to 2 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 Red Raspberry 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 Red Raspberry 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 Red Raspberry 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 Red Raspberry in each. That is a conversation for your prescriber, especially if Doxycycline is being adjusted to a target.
How was the Red Raspberry and Doxycycline combination checked?
Interactions in our licensed database are recorded against drug classes. Doxycycline is filed under 9 classifications, and Red Raspberry has documented interactions with 2 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 Red Raspberry interact with any other medications?
Yes. Red Raspberry has 135 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 — Red Raspberry 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

Red Raspberry 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 Red Raspberry?

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.