Catalpalactone具有抗炎作用，能抑制 RAW264.7 细胞中 LPS 诱导的 NO 生成和 iNOS 表达，还抑制 IRF3、NF-κB 和 IFN-β/STAT-1 激活。Catalpalactone 还通过降低酪氨酸羟化酶 (TH) 和芳香族-L-氨基酸脱羧酶 (AADC) 活性来抑制多巴胺的生物合成。

α-Lapachone是一种天然产物，从 Catalpa ovata 树皮中分离纯化，尽管它不会诱导 H₂O₂ 的生成，但其抗原虫活性与 β-Lapachone 相似。

9-Hydroxy-alpha-lapachone, a natural product isolated and purified from the herbs of Catalpa ovata, exhibits potent inhibitory activity against H. pylori Cystathionine gamma-synthase, with IC(50) values of 4.64 mM.

6-O-Feruloylglucose is a natural product isolated and purified from the herbs of Catalpa fargesii f. duclouxii.

1-Hydroxy-2-prenylnaphthalene is a natural product isolated and purified from the herbs of Catalpa ovata.

Deoxylapachol induced fungal cell wall stress and inhibited fungal growth.