This is a public service announcement. Old and unused medicines thrown down the sink mess up our poor bay environment (sharks on valium and seals on prosac, what a thought).
So, an alternative is to take them to Walgreens to have them disposed of safely on May 19th and 20th in San Francisco (different dates for different counties, scroll down to see those).
This will be a good excuse for us to go through our myriad, piled up, over-the-counter and prescription drugs, get rid of those we don't need or expired and organize the good ones and lock them up (which we need to do for our adoption home study).