Alenza contains Vexadol, a proprietary blend of two naturally occurring bioflavonoids – powerful ingredients that may help modify a dog's bodily response to fatty acid imbalances. Because AA metabolism involves both the COX and LOX pathways, blocking only one pathway can lead to overproduction of undesirable fatty acids through the other pathways. The bioflavonoids in Alenza act at multiple points to help maintain the body's normal fatty acid balance by inhibiting – not blocking – the cyclooxygenase-1 and -2 (COX-1/COX-2) and 5-lipoxygenase (5-LOX) pathways.1 This balanced approach allows adequate levels of fatty acid enzymes to continue passage through all pathways. For animal use only. Keep out of reach of children and other animals. In case of accidental overdose, contact a health professional immediately.