Omnicare Inc. posted third-quarter net income earnings of $55.9 million, up from $48.8 million a year earlier. The company said the increase was due to acquisitions and increased prescription usage.

The Covington, KY-based company’s stock rose in price to 54 cents per share from 47 cents per share a year ago.

Omnicare is the country’s largest provider of pharmacy services to nursing homes and assisted living facilities nationwide.