Corydalis Yanhusuo + Amitriptyline, Chlordiazepoxide
Amitriptyline, Chlordiazepoxide brand name: Limbitrol DS.
Amitriptyline, Chlordiazepoxide falls into 4 drug categories that Corydalis Yanhusuo can interact with; the most serious is rated moderate. Theoretically, Corydalis yanhusuo might increase the sedative effects of CNS depressants.
Read the full interaction reportCorydalis Yanhusuo and Amitriptyline, Chlordiazepoxide
These two interact in 4 distinct ways. Each one is explained separately below.
Why Are There 4 Interactions?
Corydalis Yanhusuo interacts with whole categories of medication. Amitriptyline, Chlordiazepoxide falls into 4 of those categories, so it can interact with Corydalis Yanhusuo in 4 different ways. We’ve listed each one below — your overall risk is driven by the most serious of them (Moderate).
CNS DEPRESSANTS
1 of 4Why this applies to Amitriptyline, Chlordiazepoxide
Amitriptyline, Chlordiazepoxide falls under CNS DEPRESSANTS — the group Corydalis Yanhusuo interacts with.
Corydalis yanhusuo contains berberine. Animal research suggests that berberine may have sedative effects. Theoretically, Corydalis yanhusuo might also have CNS depressants effects.
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.
Here's the simple version. Limbitrol combines two medicines that already calm the nervous system: amitriptyline (a sedating antidepressant) and chlordiazepoxide (a benzodiazepine). Both can make you drowsy on their own. Corydalis yanhusuo may also have mild sedative-type effects, so stacking them could add up to extra grogginess, dizziness, trouble concentrating, or feeling unsteady on your feet.
I want to be honest about the strength of this: it's a theoretical concern based mostly on lab and animal work, not strong human studies. So please don't panic. Still, since both parts of Limbitrol are already pretty sedating, it's worth a quick chat with your pharmacist or doctor before adding Corydalis, especially if you drive or feel sleepy during the day.
- Janbaz KH, Gilani AH. Studies on preventive and curative effects of berberine on chemical-induced hepatotoxicity in rodents. Fitoterapia 2000;71:25-33.. PubMed
- Shanbhag, S. M., Kulkarni, H. J., and Gaitonde, B. B. Pharmacological actions of berberine on the central nervous system. Jpn.J Pharmacol 1970;20(4):482-487. PubMed
- Peng, W. H., Hsieh, M. T., and Wu, C. R. Effect of long-term administration of berberine on scopolamine-induced amnesia in rats. Jpn J Pharmacol 1997;74(3):261-266. DOI
- Sabir M and Bhide NK. Study of some pharmacological actions of berberine. Ind J Physiol & Pharmac 1971;15(3):111-132.
CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES
2 of 4Amitriptyline, Chlordiazepoxide also falls under CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES.
Corydalis yanhusuo contains berberine. In vitro research and preliminary clinical evidence show that berberine can inhibit CYP2D6. Theoretically, Corydalis yanhusuo might also inhibit CYP2D6.
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.
Here's the gist for your Limbitrol DS, which combines amitriptyline (an antidepressant) and chlordiazepoxide (a benzodiazepine). The amitriptyline part leans on a liver enzyme called CYP2D6 to be cleared from your body. Corydalis contains berberine, which lab studies suggest may slow that enzyme down. If that happens, amitriptyline could build up and hit you harder, meaning more drowsiness, dry mouth, constipation, dizziness, blurry vision, or a faster heartbeat.
I'll be honest, this is a theoretical concern based on how the chemistry should work, not on solid human studies, so it may never cause you trouble. Still, both of these medicines are already sedating, so please run the combination by your pharmacist or doctor before adding corydalis.
- Chatterjee P, Franklin MR. Human cytochrome p450 inhibition and metabolic-intermediate complex formation by goldenseal extract and its methylenedioxyphenyl components. Drug Metab Dispos 2003;31:1391-7. PubMed
- Guo, Y., Chen, Y., Tan, Z. R., Klaassen, C. D., and Zhou, H. H. Repeated administration of berberine inhibits cytochromes P450 in humans. Eur J Clin Pharmacol 2012;68(2):213-217. PubMed
- Hermann, R. and von, Richter O. Clinical evidence of herbal drugs as perpetrators of pharmacokinetic drug interactions. Planta Med 2012;78(13):1458-1477. PubMed
CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES
3 of 4Amitriptyline, Chlordiazepoxide also falls under CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES.
Corydalis yanhusuo contains berberine. Preliminary clinical research shows that berberine can inhibit CYP2C9. Theoretically, Corydalis yanhusuo might also inhibit CYP2C9.
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.
Here's the idea with Limbitrol DS (a combo of the antidepressant amitriptyline and the sedative chlordiazepoxide). Corydalis may contain berberine, which in early research can slow down a liver enzyme called CYP2C9. If that enzyme works more slowly, certain medicines it helps clear can build up a bit more than usual. Neither of these drugs is a prodrug, so higher levels would simply mean stronger effects.
In practice, that could translate to more drowsiness, dizziness, dry mouth, constipation, blurred vision, or feeling groggy and unsteady. I want to be honest, though: this is theoretical, based on lab pharmacology rather than real patient cases. Don't change anything on your own. Just give your pharmacist or doctor a heads-up before combining them.
- Guo, Y., Chen, Y., Tan, Z. R., Klaassen, C. D., and Zhou, H. H. Repeated administration of berberine inhibits cytochromes P450 in humans. Eur J Clin Pharmacol 2012;68(2):213-217. PubMed
CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES
4 of 4Amitriptyline, Chlordiazepoxide also falls under CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES.
Corydalis yanhusuo contains berberine. In vitro research and preliminary clinical research show that berberine moderately inhibits CYP3A4. Theoretically, Corydalis yanhusuo might also inhibit CYP3A4.
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.
Limbitrol DS combines two medicines: amitriptyline (an older antidepressant) and chlordiazepoxide (a benzodiazepine for anxiety). Both are partly broken down by a liver enzyme called CYP3A4. Corydalis contains berberine, which lab and early human studies suggest can mildly slow that enzyme down. In theory, if your body clears these drugs a little slower, their levels could creep up and their effects could feel stronger.
For this combo that might mean more drowsiness, dizziness, dry mouth, constipation, blurry vision, or feeling unsteady. Keep in mind this is a theoretical concern based on pharmacology, not proven in people taking them together. Still, since both already cause sedation, please check with your pharmacist or doctor before adding corydalis.
- Wu X, Li Q, Xin H, Yu A, Zhong M. Effects of berberine on the blood concentration of cyclosporin A in renal transplanted recipients: clinical and pharmacokinetic study. Eur J Clin Pharmacol 2005;61:567-72. PubMed
- Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
- Guo, Y., Chen, Y., Tan, Z. R., Klaassen, C. D., and Zhou, H. H. Repeated administration of berberine inhibits cytochromes P450 in humans. Eur J Clin Pharmacol 2012;68(2):213-217. PubMed
- Hermann, R. and von, Richter O. Clinical evidence of herbal drugs as perpetrators of pharmacokinetic drug interactions. Planta Med 2012;78(13):1458-1477. PubMed
What These Ratings Mean
Every interaction above is graded three ways — here’s the key to each label.
Clinically significant. Avoid the combination, or use only under close professional supervision.
Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.
Generally not serious. Be aware of it and mention it to your pharmacist.
- 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.
- 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.
Corydalis Yanhusuo Also Interacts With Other Medications
Corydalis Yanhusuo has 1,159 moderate known drug interactions in our database — the Amitriptyline, Chlordiazepoxide one above is among them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Corydalis Yanhusuo
We haven’t checked that one against Corydalis Yanhusuo yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Corydalis Yanhusuo. Pick one to open its full report.
See Every Supplement That Interacts With Amitriptyline, Chlordiazepoxide
This page covers Corydalis Yanhusuo only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Amitriptyline, Chlordiazepoxide page lists 298 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), American Hellebore (major), Arsenic (major) and Beer (major).
By severity: 17 major · 231 moderate · 50 minor.
From our pharmacist’s overview on the Amitriptyline, Chlordiazepoxide page
“Alcohol is the first thing to know about here. Beer and wine both carry major, well-documented interactions with Amitriptyline and Chlordiazepoxide (Limbitrol DS), because both drugs already slow the central nervous system, and anything sedating layered on top can deepen ordinary drowsiness into something dangerous.”
Reviewed by 2 · Jul 18, 2026
Where Corydalis Yanhusuo and Amitriptyline, Chlordiazepoxide 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.
#865 of 1,452 supplements looked up here in the last 7 days
#1,754 of 2,830 medications looked up here in the last 7 days
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.
About Corydalis Yanhusuo
What is Corydalis Yanhusuo?
- Pain relief
- Menstrual cramps
- Headache
- Stress and sleep support
- Stomach and abdominal discomfort
Corydalis yanhusuo is a traditional Chinese herb used mainly for pain. Some early laboratory and animal research suggests its compounds may affect pain and the nervous system, but high-quality human studies are limited, so its true benefits and long-term safety are not well established. Talk with your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.
Other Drugs & Corydalis Yanhusuo
Browse every other medication we’ve checked against Corydalis Yanhusuo — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
1,159 interactions
- Diclofenac Sodium ›
- Diltiazem ›
- Nifedipine ›
- Ibuprofen ›
- Diphenhydramine ›
- Aspirin ›
- Hydrocortisone ›
- Insulin (rdna) ›
- Naproxen ›
- Erythromycin ›
- Estradiol ›
- Minocycline ›
- Propranolol ›
- Lidocaine ›
- Guaifenesin ›
- Hydrochlorothiazide ›
- Norethindrone ›
- Testosterone ›
- Verapamil ›
- Levonorgestrel ›
- Prednisone ›
- Quinidine ›
- Cyclosporine ›
- Dexamethasone ›
- Flurazepam ›
- Glyburide ›
- Insulin (pork) ›
- Triazolam ›
- Zopiclone ›
- Colchicine ›
- Fentanyl ›
- Flurbiprofen ›
- Oxybutynin ›
- Oxycodone ›
- Phenytoin ›
- Prednisolone ›
- Tacrolimus ›
- Temazepam ›
- Budesonide ›
- Carbamazepine ›
- Clindamycin ›
- Dextromethorphan ›
- Diclofenac Potassium ›
- Dipyridamole ›
- Doxorubicin ›
- Fluticasone ›
- Formoterol ›
- Hydralazine ›
- Indomethacin ›
- Insulin (human) ›
- Miconazole ›
- Morphine Sulfate ›
- Nitrazepam ›
- Trimipramine ›
- Amphetamine ›
- Buprenorphine ›
- Conjugated Estrogens ›
- Diazepam ›
- Everolimus ›
- Ivabradine ›
Showing 60 of 1,159 moderate interactions — see all 1,159 on the Corydalis Yanhusuo page.
No interaction 1,670 drugs checked — show the list
We also checked Corydalis Yanhusuo against these medications and found no known interaction in our sources. Open any page to confirm.
- Levothyroxine ›
- Methylphenidate ›
- Ivermectin ›
- Rosuvastatin ›
- Escitalopram ›
- Acetaminophen ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Bupropion ›
- Amoxicillin ›
- Acyclovir ›
- Bendamustine ›
- Doxycycline ›
- Methotrexate ›
- Azithromycin ›
- Isotretinoin ›
- Methylene Blue ›
- Ciprofloxacin ›
- Levothyroxine, Liothyronine ›
- Cyclopentolate ›
- Cephalexin ›
- Roxithromycin ›
- Pegunigalsidase Alfa-iwxj ›
- Daptomycin ›
- Hexobarbitone ›
- Levothyroxine Sodium ›
- Dexmethylphenidate ›
- Factor 7a ›
- Thyroid Hormone ›
- Carbidopa, Levodopa ›
- Mitomycin ›
- Levodopa ›
- Ezetimibe ›
- Cefaclor ›
- Lenvatinib ›
- Phenylephrine ›
- Vancomycin ›
- Hethylphenidate Hcl ›
- Dirithromycin ›
- Bentoquatam ›
- Amoxicillin, Clavulanate Potassium ›
- Procainamide ›
- Hydroxychloroquine ›
- Digoxin ›
- Azelaic Acid ›
- Triptorelin ›
- Dextrothyroxine ›
- Lomustine ›
- Tocainide ›
- Pizotifen ›
- Rocuronium ›
- Succimer ›
- Mitomycin C ›
- Paracetamol ›
- Halothane ›
- Desflurane ›
- Chenodiol ›
- Gestodene ›
Showing the 60 most looked-up of 1,670 medications checked with no known interaction — see the full Corydalis Yanhusuo list.
Sources & How We Checked
Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference for vitamins, herbs and supplements — the basis for our interaction data.
- MedlinePlus, U.S. National Library of Medicine — NIH consumer drug information, used for the medication overviews.
- NIH Dietary Supplement Label Database (DSLD) — Official supplement product labels.
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
Amitriptyline, Chlordiazepoxide Is Linked to Lower Levels of 3 Nutrients
Natural Medicines records Amitriptyline, Chlordiazepoxide as a medicine that can lower these. This is not an interaction with Corydalis Yanhusuo — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Amitriptyline, Chlordiazepoxide nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Corydalis Yanhusuo and Amitriptyline, Chlordiazepoxide Together: Common Questions
Can you take Corydalis Yanhusuo with Amitriptyline, Chlordiazepoxide?
Why are there 4 interactions listed for Corydalis Yanhusuo and Amitriptyline, Chlordiazepoxide?
How serious is the Corydalis Yanhusuo and Amitriptyline, Chlordiazepoxide interaction?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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