Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Evodia has none that clears that bar.
Stitching two separate single-ingredient studies into a pairing is the one thing this engine will not do. When a study of the combination itself holds up at source, it lands here with its citation.
No invented synergy. Where actives were studied on their own rather than together, the record shows each on its own evidence, never a combined effect no trial measured.
Research strength. Research strength says how much work stands behind the combination. It is never a product score.
Independent record. Every finding is cited to a named trial, dated, and never written by the brand.
20 pairings are live across the library today. Checked 20 July 2026.
No study gave these as a pair, so they are not in the card above. But the reason they belong together is settled biochemistry, not a guess, so it is worth knowing.
CYP1A2 is the main route by which caffeine is broken down, and rutaecarpine induces it. The practical result is that regular Evodia intake can shorten how long caffeine stays around, so the usual coffee feels weaker. The direction here is unusual for a botanical, since most herb interactions slow drug clearance rather than speed it. Anyone whose stimulant response changes after starting Evodia should look here first.
The Evodia and Coptis pairing is one of the oldest fixed two-herb combinations in Chinese medicine, used at a roughly one to six ratio. Coptis is where berberine comes from, so the modern supplement equivalent of that pairing is Evodia plus berberine. Both carry alkaloids with notable effects on gut motility, and both are commonly reported to cause digestive upset. The historical pairing is well documented, the mechanistic account of why it works is not.
Evodiamine and the gingerols both engage TRP channels, which is the basis of the warming sensation each produces. The two are frequently combined in traditional preparations aimed at the digestive tract. What is established is the receptor class, not any measured additive effect in people. The combined pungency can be uncomfortable for anyone with a sensitive stomach.
Both compounds bind and activate TRPV1, so taking them together stacks activity at a single receptor rather than at two separate ones. That means the effects are not independent and the combined dose should be read as one total. Repeated TRPV1 activation also leads to receptor desensitisation, which is why tolerance to the burning sensation builds. The overlap is mechanistic and well supported.
Concentrated botanical extracts stacked together raise the total load on hepatic metabolism, and both of these have appeared in case reports of raised liver enzymes. Neither is established as causing harm at ordinary doses, and the concern is about the combination of two concentrates rather than either alone. Someone taking both should know that liver enzymes are a marker and not a symptom. Read this as a formulation caution.
Bioinformatic and network pharmacology work on this herb has been built around a gut microbiota to inflammation route, which implies the microbial community sits between the herb and any downstream effect. If that framing holds, then what someone is already carrying in their gut changes what the herb does. This is a hypothesis generated from computational prediction plus animal work, not a human finding. Nothing here establishes that adding a probiotic changes the outcome.
Nothing specific on file for Evodia. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.These are the studies our verdict leans on, chosen from the 2 we read for Evodia. The full linked list is below.
1 source behind our Evodia verdict: peer-reviewed studies and registered clinical trials. Every one links straight to PubMed, the journal, or ClinicalTrials.gov. Read them yourself.
Evidence surfaced via Semantic Scholar (Allen Institute for AI) and ClinicalTrials.gov. Ranked by study type and citation weight, not cherry-picked.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.