Dr Reddy`s Laboratories Ltd recalled 13560 bottles of the high blood pressure drug metoprolol succinate in the United States after it failed a dissolution test the U.S. Food and Drug Administration said. Metoprolol succinate extended release is a cheaper generic form of AstraZeneca Plc`s Toprol XL. Wockhardt Ltd also recalled 109744 bottles of the same drug last month citing the same reason. The recall was voluntarily started by Dr Reddy`s on May 23 2014 and posted on the FDA website on Thursday. A Dr Reddy`s spokesman did not immediately respond to a request for comment on the recall. Dissolution tests