SHAREHOLDER ALERT: Levi & Korsinsky, LLP Notifies Investors of Claims of Breaches of Fiduciary Duty by the Board of PROLOR

SHAREHOLDER ALERT: Levi & Korsinsky, LLP Notifies Investors of Claims of
Breaches of Fiduciary Duty by the Board of PROLOR Biotech, Inc. in Connection
With the Sale of the Company to OPKO Health, Inc.

NEW YORK, May 2, 2013 (GLOBE NEWSWIRE) -- Levi & Korsinsky notifies investors
of PROLOR Biotech, Inc. ("PROLOR" or the "Company") (NYSE MKT:PBTH) of claims
of breaches of fiduciary duty and other violations of state law against the
board of directors of the Company in connection with the sale of the Company
to OPKO Health, Inc. ("OPKO") (NYSE:OPK). A complaint was filed in Nevada
state court.

Click here to learn more about the investigation, or call: 877-363-5972. There is no
cost or obligation to you.

Under the terms of the transaction, PROLOR shareholders may elect to receive
0.9951 shares of OPKO for each share of PROLOR they own, representing a value
of approximately $7.025 per share. The transaction has a total approximate
value of $480 million. The claims concern whether the PROLOR Board of
Directors breached their fiduciary duties to stockholders by failing to
adequately shop the Company before agreeing to enter into the transaction, and
whether OPKO is underpaying for PROLOR stock, thus unlawfully harming PROLOR
stockholders. In particular, at least one analyst set a price target for
PROLOR stock at $12.00 per share.

If you own common stock in PROLOR and wish to obtain additional information,
please contact Joseph E. Levi, Esq. either via email at or by
telephone at (212) 363-7500, toll-free: (877) 363-5972, or visit

Levi & Korsinsky is a national firm with offices in New York, New Jersey and
Washington D.C. The firm has extensive expertise in prosecuting securities
litigation involving financial fraud, representing investors throughout the
nation in securities and shareholder lawsuits. The attorneys at Levi &
Korsinsky have been appointed by numerous courts throughout the country to
serve as lead counsel on behalf of shareholders in major securities lawsuits
and have successfully recovered multimillion-dollar damages awards on behalf
of investors. For more information, please feel free to contact any of the
attorneys listed below. Attorney advertising. Prior results do not guarantee
similar outcomes.

CONTACT: Levi & Korsinsky, LLP
         Joseph Levi, Esq.
         Eduard Korsinsky, Esq.
         30 Broad Street - 24th Floor
         New York, NY 10004
         Tel: (212) 363-7500
         Toll Free:  (877) 363-5972
         Fax: (212) 363-7171
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