Research
Buchu for Bladder Health: Evidence, Interactions and Cautions
Buchu is an ingredient used in bladder supplements marketed to women. Below is what it has actually been studied for, how strong that evidence is, the drug interactions and cautions on record, and the primary source our grade rests on — all drawn from the HerWellReport ingredient dataset.
Also sold as: Agathosma betulina; Barosma betulina; round-leaf buchu; boegoe
What the evidence says about Buchu
A 2022 review in Frontiers in Pharmacology found no randomised, double-blind, placebo-controlled human studies of buchu at all, and stated that health claims for buchu products still need to be substantiated by such trials. Its 19th-century reputation as a urinary remedy rests on historical case reports rather than trials. The reviewers also noted that the composition of buchu extracts used in research is frequently undisclosed, so even the laboratory findings cannot be tied to any particular product.
The grade "traditional" means: traditional — A long history of use but little or no human trial evidence for this outcome. Grades are explained in full on our methodology page.
Read the primary source this grade rests on (opens in a new tab).
Buchu drug interactions
No documented drug interactions in the sources we checked. That is not the same as proof of safety alongside your medication — it usually means the question has not been studied. Ask a pharmacist before combining it with prescription drugs.
Who should be careful with Buchu
No specific cautions recorded beyond the usual ones for any supplement: check with your doctor if you are pregnant, breastfeeding, have liver or kidney disease, or take regular medication.
Read more on HerWellReport
This entry is generated from row "Buchu" of the HerWellReport ingredient dataset (v2.1, updated 2026-09-23). The dataset is free to reuse under CC BY 4.0 — how to cite it. Ingredient evidence is not evidence for any finished product, and nothing here is medical advice.