Updated from 2:29 p.m. EDT

Shares of

Computer Programs & Systems

(CPSI) - Get Report

were among the best-performing health-related stocks Friday, rising 14.7% after the company posted first-quarter results that topped expectations and said that second-quarter earnings would be better than expected.

The company, which provides health care software to community hospitals, posted earnings of $3.2 million, or 31 cents a share, on sales of $26.4 million. Analysts polled by Thomson First Call were expecting earnings of 25 cents a share on sales of $23.2 million. A year ago the company earned $800,000, or 7 cents a share, on sales of $18.2 million. First-quarter results were led by continued strong growth in the company's information technology business and business process outsourcing. Looking ahead, the company forecast second-quarter earnings of 25 cents to 27 cents a share on sales of $24 million to $25 million. Analysts are expecting earnings of 24 cents a share on sales of $24.1 million. Shares traded up $4.04 to $31.48.

Millipore

(MIL)

rose 9.9% after the company posted first-quarter earnings and sales that were ahead of expectations. The bioscience company earned $32.3 million, or 64 cents a share, on sales of $250.2 million. Excluding several items, the company posted pro forma earnings of 77 cents a share. Analysts were expecting earnings of 59 cents a share on sales of $234.5 million. A year ago the company earned $27.2 million, or 55 cents a share, on sales of $222.5 million. Millipore said that sales gains during the quarter were largely driven by consumables and services for biotechnology process development and production in North America. The company also said that "key biotech accounts advanced the timing of orders to the first quarter," boosting its performance. Shares traded up $4.33 to $48.29.

Shares of

Alcon

( ACL) rose 5.8% after the maker of eye-care products posted first-quarter results that topped expectations and said that full-year results will be better than expected. The company earned $249.5 million, or 80 cents a share, on sales of $1.07 billion. Analysts were expecting earnings of 75 cents a share on sales of $1.04 billion. A year ago the company earned $191 million, or 61 cents a share, on sales of $963.6 million. Looking ahead, Alcon forecast 2005 earnings of $3.25 to $3.30 a share, which excludes items, on sales of $4.325 billion to $4.4 billion. Analysts had been expecting earnings of $3.13 a share on sales of $4.31 billion. Shares traded up $5.14 to $94.50.

Theragenics

( TGX) rose 2.7% after the company posted a smaller year-over-year first-quarter loss on a 20% jump in sales. The medical device maker posted a loss of $496,000, or 2 cents a share, on sales of $9.5 million. A year ago the company reported a loss of $966,000, or 3 cents a share, on sales of $8 million. Results in the latest quarter were buoyed by a continuation of solid brachytherapy sales. Shares traded up 9 cents to $3.45.

Shares of

Parexel International

(PRXL)

fell modestly after the company posted third-quarter earnings that matched recently lowered estimates and warned that fourth-quarter earnings would fall short of expectations. The company posted earnings of $4.6 million, or 17 cents a share, on sales of $137.1 million. On Monday, shares plunged after the company said that it would earn 15 cents to 17 cents a share during the third quarter on sales of about $136 million, down from previous guidance of 25 cents to 27 cents a share in earnings and $145 million to $150 million in sales. Looking ahead, Parexel forecast fourth-quarter earnings of 18 cents to 23 cents a share on sales of $143 million to $148 million. Analysts had been expecting earnings of 24 cents a share on sales of $145.9 million. Shares traded down 5 cents to $17.93.

Other health care volume movers included

Pfizer

(PFE) - Get Report

, down 3 cents to $27.22;

Amgen

(AMGN) - Get Report

, down 36 cents to $58.89;

Merck

(MRK) - Get Report

, down 8 cents to $34.20;

Johnson & Johnson

(JNJ) - Get Report

, up 20 cents to $68.49;

Gilead Sciences

(GILD) - Get Report

, up 83 cents to $39.55;

Schering-Plough

( SGP), up 5 cents to $20.75;

Intuitive Surgical

(ISRG) - Get Report

, down $10.68 to $41.22;

Elan

(ELN)

, down 8 cents to $3.86; and

Genentech

( DNA), down $1.16 to $69.84.