UPDATE 1-Canada's Jean Coutu's adjusted profit and revenue rise

* Q2 adjusted earnings C$0.23/share vs C$0.19 year-earlier

* Generics unit Pro Doc

* Same-store sales up 2.6 percent

(Recasts first sentence with adjusted earnings, results from generics unit; adds same-store sales.)

Oct 10 (Reuters) - Canadian pharmacy chain Jean Coutu Group Inc reported a rise in adjusted quarterly earnings on Wednesday, as its generic drug manufacturing subsidiary Pro Doc posted a double-digit gain in sales and operating income.

Prescription sales growth at Longueuil, Quebec-based Jean Coutu and rivals such as Shoppers Drug Mart Corp has been hurt in recent years by a provincial crackdown on generic drug prices and reimbursement rules. But Jean Coutu has said Pro Doc should help boost margins over the long term.

Pro Doc's sales rose 14.0 percent to C$38.3 million ($39.2 million) for the second quarter ended Sept. 1, and its contribution to operating income before amortization rose 25.2 percent to C$15.4 million.

Excluding a gain related to Jean Coutu's stake in U.S. drugstore chain Rite Aid Corp and other items, earnings rose to C$50.0 million, or 23 Canadian cents a share, compared with C$44.6 million, or 19 Canadian cents, a year earlier.

On an unadjusted basis, net profit fell to C$51.2 million ($52.3 million), or 23 Canadian cents a share, from C$66.4 million, or 29 Canadian cents.

Revenue rose to C$658.7 million from C$635.2 million. Sales at established stores, a key measure for retailers, rose 2.6 percent.

($1 = $0.98 Canadian)

(Reporting by Allison Martell; Editing by Leslie Adler)

((allison.martell@thomsonreuters.com)(+1 416 941 8196)(Reuters Messaging: allison.martell.thomsonreuters.com@reuters.net))