Carson City saw the largest haul of old or unused prescription drugs on Sept. 29, since round-ups of such drugs began here in 2010.The latest round-up netted 197 pounds of medications and 42 pounds of syringes, needles and other sharp medical objects for a combined total of 239 pounds.Carson City’s previous round-up, in April, collected 165 pounds of medications and 30 pounds of syringes.In the latest collection effort, “I noticed a lot more oxycodone and hydrocodone,” said Kathy Bartosz, executive director of Partnership Carson City. Oxycodone and Hydrocodone are in the same family as other opiates such as opium and …