The United States Food and Drug Administration (FDA) approved the medication as a candidate in December 2012, but temporarily suspended sales in October 2013, because of "the risk of life-threatening blood clots and severe narrowing of blood vessels".[7][8] The suspension was partially lifted on in December 2013, with ponatinib being issued revised prescribing information, a new "Black Box Warning" and a "Risk Evaluation and Mitigation Strategy" in place to better evaluate the risks and benefits of using the drug.[citation needed]
^Huang WS, Metcalf CA, Sundaramoorthi R, Wang Y, Zou D, Thomas RM, et al. (June 2010). "Discovery of 3-[2-(imidazo[1,2-b]pyridazin-3-yl)ethynyl]-4-methyl-N-{4-[(4-methylpiperazin-1-yl)methyl]-3-(trifluoromethyl)phenyl}benzamide (AP24534), a potent, orally active pan-inhibitor of breakpoint cluster region-abelson (BCR-ABL) kinase including the T315I gatekeeper mutant". Journal of Medicinal Chemistry. 53 (12): 4701–4719. doi:10.1021/jm100395q. PMID20513156.