Tuesday's Health Winners and Losers

Kos Pharmaceuticals(KOSP Quote) shares rose 5% on an earnings beat.

Kos earned $13.9 million, or 28 cents a share, down from $28.9 million, or 61 cents a share. However, excluding certain one-time charges, the company earned 59 cents a share. Analysts surveyed by Thomson First Call were expecting earnings of 42 cents a share.

Revenue also exceeded expectations, reaching $223.7 million, compared with estimates of $215.3 million.

Barrier Therapeutics(BTRX Quote) shares fell 13% after losses widened.

The drug developer lost $13.9 million, or 58 cents a share, for the second quarter, compared with a year-ago loss of $10.8 million, or 45 cents a share. Analysts were expecting a loss of 53 cents a share.

Revenue more than doubled to $1.08 million from $472,000 a year ago. Shares fell 86 cents to $5.55.

Investors in Inspire Pharmaceuticals (ISPH Quote) fell 8% on a second-quarter loss.

Inspire's net loss widened to $5.4 million, or 13 cents a share, from the year-ago $4.7 million, or 11 cents a share. Analysts were expecting a loss of 18 cents a share. Revenue in the second quarter was $13.4 million, compared with $9.6 million a year ago.

Among other health stocks sinking Tuesday were Celgene(CELG Quote), down 2.5% to $44; Medtronic (MDT Quote), off 1.2% to $43.26; Northfield Laboratories (NFLD Quote), down 2.3% to $11.35; and Momenta Pharmaceuticals(MNTA Quote), down 9.8% to $14.80.

Among health stocks rising were Genetic Technologies(GENE Quote), up 9.6% to $8.25; AMN Healthcare Services(AHS Quote), up 6.8% to $22.54; InterMune(ITMN Quote), up 3.8% to $15.98; and Valeant Pharmaceuticals(VRX Quote), up 2.8% to $18.59.

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