CARACAS, Venezuela, Feb. 6 — In an effort to shore up an economy that was devastated by an antigovernment strike, President Hugo Chávez announced today a series of currency controls intended to bolster Venezuela's diminishing foreign reserves and price cuts on essential goods.

Mr. Chávez, in a nationally televised address that ended just past midnight, said that the controls were necessary to stem capital flight and to prop up the local currency, the bolivar, which lost nearly 30 percent of its value during the two-month strike. With growing numbers of Venezuelans abandoning the country, international reserves dropped $2 billion during the walkout, which ended on Sunday.

The president, who this week declared victory after his adversaries ended the walkout in all but the oil sector, also warned that he could use the new currency restrictions to cut off access to dollars for opposition businessmen. Government foes began the strike on Dec. 2, in a failed effort to force Mr. Chávez from power or prod him into calling early elections.

"Not one dollar for coup-mongers," said Mr. Chávez, who was seated in front of a portrait of Simón Bolivar, the Venezuelan independence hero.