PITTSBURGH — A man accused of illegally selling so-called “smart drugs” out of his Hermitage residence pleaded guilty to conspiracy in federal court.

Emil “Butch” Koledin pleaded guilty before Senior U.S. District judge Donetta Ambrose to one count of conspiracy to defraud agencies of the United States. Koledin entered the plea both for himself and on behalf of his business, Koledin Enterprises Inc.

The office of Scott Brady, U.S. attorney for the Western District of Pennsylvania, said Koledin sold drugs billed as “Smart drugs, memory enhancers, neuro exchangers and intelligence enhancements.” The drugs were mostly manufactured in China and Russia.

Many of the drugs had Russian labeling and were not approved for sale in the United States.

Federal prosecutors alleged that Koledin falsely claimed that the drugs were approved by the U.S. Food and Drug Administration for sale in the United States. Assistant U.S. Attorney Brendan Conway prosecuted the case.

The drugs Koledin sold could not be legally sold in the United States because they lack proper labeling with directions for use and warnings and were manufactured in unapproved facilities. Prosecutors said Koledin indicated in an email exchange with a supplier that he knew the drugs were illegal.

Koledin’s wife, Maria, a former Hermitage city commissioner, was not named in the case.

Ambrose scheduled Koledin for sentencing on Oct. 7. He could be sentenced to a maximum of 5 years in prison and a fine of $250,000. The government could fine Koledin Enterprises a maximum of $500,000.