From an Alameda Police Department press release:
On Sept. 29 from 10 a.m. to 2 p.m. the Alameda Police Department and the Drug Enforcement Administration (DEA) will give the public another opportunity to prevent pill abuse and theft by ridding their homes of potentially dangerous expired, unused, and unwanted prescription drugs.
Bring your medications for disposal to the Alameda Police Department, 1555 Oak St. A drive-up site will be set up in the parking lot between the Police Department and City Hall (1500 block of Oak Street). The service is free and anonymous, no questions asked.
Medicines that languish in home cabinets are highly susceptible to diversion, misuse, and abuse. Rates of prescription drug abuse in the U.S. are alarmingly high, as are the number of accidental poisonings and overdoses due to these drugs. Studies show that a majority of abused prescription drugs are obtained from family and friends, including from the home medicine cabinet. In addition, Americans are now advised that their usual methods for disposing of unused medicines — flushing them down the toilet or throwing them in the trash — both pose potential safety and health hazards.
The city also has a public pharmaceutical disposal bin which is available in the front lobby of the Alameda Police Department where residents can safely dispose of their unused medication between 8 a.m. and 8 p.m. This bin was made possible through a partnership with Alameda County Environmental Health and East Bay Municipal Utility District.