Regorafenib Monohydrate is a novel oral multikinase inhibitor with IC50 values of 13, 4.2, 46, 22, 7, 1.5, 2.5, 28, 19 nM for VEGFR1, murine VEGFR2, murine VEGFR3, PDGFR-β, KIT, RET, RAF-1, B-RAF and B-RAF(V600E) respectively.

Amlexanox (AA673) is an anti-aphthous ulcer drug. Amlexanox inhibits the synthesis and release of inflammatory mediators, including leukotrienes and histamine, from mast cells, neutrophils, and mononuclear cells. Amlexanox also acts as a leukotriene D4 antagonist and a phosphodiesterase inhibitor. Amlexanox decreases the time ulcers take to heal as well as the pain associated with the ulcers.

Sorafenib tosylate (Bay 43-9006) is a potent multikinase inhibitor (IC50s: 6/20/22 nM for Raf-1/VEGFR-3/B-Raf).

Regorafenib (BAY 73-4506) is an orally active, multi-targeted receptor tyrosine kinase inhibitor that inhibits RET, C-RAF, VEGFR2, c-Kit, VEGFR1, and PDGFRβ, exhibiting both antitumor and anti-angiogenic activity.

Lenvatinib mesylate (E7080 (mesylate)) is an oral and multi-targeted inhibitor of VEGFR1-3, FGFR1-4, PDGFR, KIT, and RET, with potent antitumor activities.

Pazopanib (GW786034) is an inhibitor of protein tyrosine kinases that inhibits VEGFR1, VEGFR2, VEGFR3, PDGFRβ, c-Kit, FGFR1, and c-Fms (IC50=10/30/47/84/74/140/146 nM). Pazopanib has antitumor activity.

Formononetin (Flavosil) is an O-methylated isoflavone and a phytoestrogen from the root of Astragalus membranaceus.

Nintedanib (Intedanib) is a triple vascular kinase inhibitor that inhibits VEGFR1, VEGFR2, and VEGFR3 (IC50=34/13/13 nM), FGFR1, FGFR2, and FGFR3 (IC50=69/37/108 nM), PDGFRα, and PDGFRβ (IC50=59/65 nM). Nintedanib has antitumor activity and inhibits tumor growth by inhibiting angiogenesis.