COLUMBUS, Ohio (AP) — Ohio says it's switching its lethal injection drug to an anesthetic commonly used to euthanize pets as a shortage of the drug normally used for executions has worsened.

The Department of Rehabilitation and Correction says the state will use a single, powerful dose of pentobarbital. It's a common anesthetic used in surgeries and by veterinarians. Only Oklahoma also uses it.

The drug replaces sodium thiopental. That drug was already in short supply when its only U.S. manufacturer announced last week it would no longer produce it.

Ohio will use its remaining supply of sodium thiopental for a scheduled Feb. 17 execution. The first use of pentobarbital is planned for March.