Drug & supplement interaction

Goat's Rue + Lorcaserin

Lorcaserin brand name: Belviq.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Goat's Rue and Lorcaserin 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.

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Interaction report

Goat's Rue and Lorcaserin

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 Lorcaserin and Goat's Rue 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.

Goat's Rue safety at a glance

Goat's Rue overall Use caution The fresh plant can be toxic, and well-controlled human safety data on supplements are limited.

Pregnancy Avoid Not enough safety data exists, so it is best avoided during pregnancy.

Breastfeeding Use caution It is traditionally used to support milk supply, but quality and safety vary, so use only with professional guidance.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Lorcaserin and Goat's Rue? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Lorcaserin

Interactions in our licensed database are recorded against drug classes, not just single drug names. Lorcaserin is filed under 4 classifications — including cytochrome p450 2d6 (cyp2d6) inhibitors, serotonergic drugs, serotonergic drugs. Goat's Rue has documented interactions with 1 drug class — the most serious being anticoagulant/antiplatelet drugs (moderate) — and none of Lorcaserin’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

Goat's Rue Does Interact With Other Medications

Goat's Rue has 122 moderate known drug interactions in our database — Lorcaserin isn’t one of them. If you take anything else, check it against the full list below.

Moderate 122 No known interaction 2,708 (incl. Lorcaserin)

Taking anything else?

Check Another of Your Medications Against Goat's Rue

Covers the 2,830 medications we’ve checked against Goat's Rue. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Lorcaserin

This page covers Goat's Rue only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lorcaserin page lists 40 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Lithium (major), 5-htp (moderate), Acetyl-l-carnitine (moderate) and Ayahuasca (moderate).

By severity: 2 major · 27 moderate · 11 minor.

From our pharmacist’s overview on the Lorcaserin page

“Lorcaserin (Belviq) curbs appetite by stimulating serotonin receptors, which is exactly why I would slow down before pairing it with supplements. Half the entries below also push serotonin higher, and stacking them can edge toward serotonin syndrome, a dangerous serotonin overload.”

Reviewed by 2 · Jul 18, 2026

Open the Lorcaserin interaction page

One more smart check

Taking Goat's Rue as Part of a Dietary Supplement Product? Check It for Interactions

We hold 80 real supplement products containing Goat's Rue, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Goat's Rue. Even though Goat's Rue itself has no known interaction with Lorcaserin, 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 Goat's Rue and Lorcaserin 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 Goat's Rue

Top half

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

29 days ago today

Medication Lorcaserin

Steady interest

#2,549 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 Goat's Rue reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Goat's Rue and Lorcaserin records this page draws on were last updated June 22, 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 Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Goat's Rue

What is Goat's Rue?

Boosting breast milk supply
Blood sugar support
Traditional digestive remedy
General tonic

Goat's rue is a traditional herb most often used by nursing parents to try to increase milk supply, and it has a historical link to diabetes research. Solid human evidence for either use is limited, and the plant can be toxic in larger amounts, so use it only under the guidance of a pharmacist or doctor.

Galega officinalis · Fabaceae · Above-ground parts (leaves, flowering tops, and seeds) · Tea, capsules, tincture, dried herb

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

Goat's Rue: dosing

There is no well-established, standardized dose for goat's rue. Do not exceed the recommended amount, and choose products from reputable brands.

From our Goat's Rue monograph — the full record covers uses, side effects and every documented interaction.

Read the full Goat's Rue monograph & all interactions

Medication

About Lorcaserin

What Is Lorcaserin Used For?

Brand name: Belviq

Lorcaserin is used to help adults who are obese or who are overweight and have weight-related medical problems to lose weight and keep from gaining back that weight. Lorcaserin must be used along with a reduced calorie diet and an exercise plan. Lorcaserin is in a class of medications called serotonin receptor agonists. It works by increasing feelings of fullness so that less food is eaten.

See full Lorcaserin drug information

Keep checking

Other Drugs & Goat's Rue

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

0Major

122Moderate

0Minor

2,707No known interaction

122 Moderate 2,707 No interaction

Moderate

122 interactions

Showing 60 of 122 moderate interactions — see all 122 on the Goat's Rue page.

No interaction 2,707 drugs checked — show the list

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

Showing the 60 most looked-up of 2,707 medications checked with no known interaction — see the full Goat's Rue list.

See the full Goat's Rue interactions page

See every supplement checked against Lorcaserin, ranked by severity

Evidence & sources

Goat's Rue References

The 6 references that drive our Goat's Rue 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.

Atanasov AT. Effect of Galega officinalis L. extract on platelet aggregation in rats. J Herbs Spices Med Plants 1995;3:71-6.
Atanasov, A. T. and Spasov, V. Inhibiting effect of desalted extract from Galega officinalis L. on platelet aggregation. Folia Med.(Plovdiv.) 1999;41(1):46-50.
Atanasov, A. T. and Spasov, V. Inhibiting and disaggregating effect of gel-filtered Galega officinalis L. herbal extract on platelet aggregation. J.Ethnopharmacol. 2000;69(3):235-240. PubMed
Atanasov, A. T. and Tchorbanov, B. Anti-platelet fraction from Galega officinalis L. inhibits platelet aggregation. J.Med.Food 2002;5(4):229-234.
Atanasov, A. T. and Tchorbanov, B. J. Antiplatelet aggregation activity of a fraction isolated from Galega officinalis L. J Herbs Spices Medicinal Plant 2002;10(2):63-71.
Salatino S, Giacomelli L, Carnevali I, Giacomelli E. The role of natural galactagogues during breast feeding: focus on a Galega officinalis based food supplement. Minerva Pediatr. 2017 Dec;69(6):531-537. 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 Goat's Rue and Lorcaserin Together: Common Questions

Is it safe to take Goat's Rue with Lorcaserin?

We do not list a known interaction between Goat's Rue and Lorcaserin. 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.

How was the Goat's Rue and Lorcaserin combination checked?

Interactions in our licensed database are recorded against drug classes. Lorcaserin is filed under 4 classifications, and Goat's Rue has documented interactions with 1 drug class — none of Lorcaserin'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 Goat's Rue interact with any other medications?

Yes. Goat's Rue has 122 documented drug interactions in our database — Lorcaserin 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 Lorcaserin interact with any supplements?

Yes. Lorcaserin has documented interactions with 40 supplements in our database — Goat's Rue is not one of them. The Lorcaserin 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

Goat's Rue monograph Uses, safety profile, and every drug interaction in one place Lorcaserin drug information The full plain-English guide to this medication Lorcaserin supplement interactions Every supplement checked against Lorcaserin, 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 6 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Lorcaserin and Goat's Rue?

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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.