(Lake Oswego, OR) -- A Lake Oswego father is jailed in Clackamas Country, accused of drugging three of his daughter's 12-year-old friends during an August sleepover at his house. OregonLive reports 57-year-old Michael Meyden turned himself in last week. He's accused of lacing smoothies with the sedative benzodiazepine, known by trade names including Valium, Xanax, and Ativan. Meyden pleaded not guilty to multiple felony and misdemeanor charges at his Wednesday arraignment. Bail was set at 50-thousand-dollars.