Exhibit 5.1

		SUITE 300, 204 BLACK STREET WHITEHORSE, YUKON Y1A 2M9 TELEPHONE: 867-668-5252 FAX: 867-668-5251 E-MAIL: lackowicz@yukonlaw.com

IN ASSOCIATION WITH

		Reply Attention To: Paul W. Lackowicz DIRECT E-MAIL:plackowicz@yukonlaw.com Our File No: 37636   May 10, 2012

SXC Health Solutions Corp.

2441 Warrenville Road

Suite 610

Lisle, Illinois

60532-3642

Dear Sirs/Mesdames:

Re: SXC Health Solutions Corp. (the “Corporation”)

We act as Yukon counsel to the Corporation. We have been requested by the Corporation to provide to you the following opinion in connection with the filing by the Corporation of a registration statement on Form S-3 (File No. 333-161237) filed with the SEC on August 10, 2009 (including the base prospectus included therein the “Registration Statement), a preliminary prospectus supplement to the base prospectus included in the Registration Statement dated May 9, 2012 (the “Preliminary Prospectus Supplement”), and a prospectus supplement to the base prospectus included in the Registration Statement dated May 10, 2012 (the “Final Prospectus Supplement”), relating to the issuance and sale today (the “Offering”) by the Corporation of 5,980,000 common shares (the “Shares”) at a price of US$90.60 per Share pursuant to an underwriting agreement dated May 10, 2012 (the “Underwriting Agreement”) among the Corporation and J.P. Morgan Securities LLC. And Barclays Capital Inc., as representatives of the several underwriters listed in Schedule 1 to the Underwriting Agreement (the “Underwriters”).

Scope of Review

In connection with the opinions hereinafter expressed, we have examined and relied upon faxed or e-mailed copies of the following:

We have received and reviewed a Certificate of Status for the Corporation issued on May 10, 2012 by the Yukon Registrar of Corporations under the Business Corporations Act (Yukon) (the “YBCA”).

We have also examined the articles and by-laws contained in the Corporation’s minute book.

Assumptions

In rendering this opinion, we have assumed:

Practice Restriction

We are solicitors qualified to carry on the practice of law in the Yukon Territory only and we express no opinion as to any laws or matters governed by the laws other than the Yukon Territory and the federal laws of Canada applicable therein in effect as at the date of this opinion.

We act only as the Registered Office for the Corporation in the Yukon Territory and have not been and are not regular counsel to the Corporation in any business transactions or litigation. We have reviewed the documents noted above in the section headed “Scope of Review”, but we have not participated in the negotiation of their terms or the drafting thereof.

For purposes of our opinion in paragraph 1 below as to the good standing of the Corporation, we have relied exclusively on the Yukon Certificate and have assumed no changes in the status of the Corporation since the date of such certificate.

This opinion is given to you as of the date hereof and we disclaim any obligation to advise you of any change after the date hereof in any matter set forth herein, and we express no opinion as to the effect of any subsequent course of dealing or conduct between the parties referred to herein.

Opinions

Subject to the foregoing, we are of the opinion that:

1. The Corporation is a company duly organized, validly existing and in good standing under the Business Corporations Act (Yukon).

2. The Shares to be issued and sold by the Corporation have been duly authorized for issuance and, when such Shares are issued and paid for in accordance with the terms and conditions of the Underwriting Agreement, such shares will be validly issued as fully paid and non-assessable common shares of the Corporation.

This opinion is furnished solely for the benefit of the addressee hereof for the purposes described herein and may not be used, circulated, quoted, relied upon or distributed, or otherwise referred to by any other person or entity or for any other purpose without our prior written consent.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference to us under the caption “Legal Matters” in the Registration Statement. Such consent is not an admission that we are in the category of persons whose consent is required under Section 7 of the Securities Act, or the rules and regulations promulgated thereunder.