Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We have issued our reports dated March 2, 2015, with respect to the consolidated financial statements, schedule and internal control over financial reporting included in the Annual Report on Form 10-K for the year ended December 31, 2014 of Raptor Pharmaceutical Corp. We have also issued our reports dated March 17, 2014, with respect to the consolidated financial statements, schedule and internal control over financial reporting included in the Annual Report on Form 10-K for the year ended December 31, 2013 and in the Annual Report on Form 10-KT/A for the four month period ended December 31, 2012 of Raptor Pharmaceutical Corp. These reports are incorporated by reference in this Registration Statement. We consent to the incorporation by reference in the Registration Statement of the aforementioned reports, and to the use of our name as it appears under the caption “Experts.”

/s/ GRANT THORNTON LLP

San Francisco, California

April 13, 2015