(±)-α-Bisabolol (Bisabolol) isa sesquiterpenol extracted from essential oils of chamomile, candida and other plants. It isa natural antiseptic with soothing, antiirritating, anti-inflammatory, antioxidant and anticancer activities. (±)-α-Bisabolol has anticancer effects on A549 NSC-LC cells by inducing cell cycle arrest, mitochondrial death and inhibiting PI3K/Akt signaling (IC50 = 15 μM). (±)-α-Bisabolol can induce apoptosis of glioma cells.

Under resting tonus, (–)-a-bisabolol (30–300 µmol/L) relaxed duodenal strips. Contracting endothelium-intact aortic rings and urinary bladder strips, and relaxing these tissues at higher concentrations (600–1000 µmol/L). In preparations precontracted either electromechanically (by 60 mmol/L K+) or pharmacomechanically (by phenylephrine or carbachol), (–)-a-bisabolol showed only relaxing properties. [1]

(-)-α-Bisabolol (100-200 mg/kg; p.o.; one day before and 1 h after pMCAO; once daily for the following five days; mice) significantly reduces the infarcted area and neurological deficits caused by pMCAO. (−)-α-bisabolol can exert anti-inflammatory effects by reducing astrogliosis, MPO activity, and TNF-α and iNOS production.[1] (–)-a-bisabolol attenuated the increased responses of carbachol in tracheal rings of ovalbumin-sensitized rats challenged with ovalbumin, but was without effect in the decreased responsiveness of urinary bladder strips in mice treated with ifosfamide. (–)-a-bisabolol may be an inhibitor of voltage-dependent Ca2+ channels.[2]