Seniors sometimes self-prescribe with leftover medications, he said, or they give them to other seniors. Children can take them by accident, or drug abusers can steal them.
As part of his job, Gray travels around the state to counties that are considering ordinances to require drug manufacturers to take back unused and unwanted prescription medications.
So far, at least four counties have adopted these rules and another seven to 10 counties are considering legislation, Gray said. He said he's meeting with Los Angeles County officials on Monday to help shape their take-back policy.
"There is nothing at the state or federal level to deal with this so the counties are trying to do what they can through their ordinances. It gets difficult if each of the 58 counties have a different program. So I try to help identify best practices so [the ordinances] are the same," Gray said.
There are a couple of other ways to keep prescription medications from piling up, he said:
- Small initial quantity. Instead of prescribing a drug for the first time for a full course of a month or even three months, Gray said there's an effort underway to start with a smaller amount. "The provider doesn't know what will be tolerated by you, and doesn’t know whether it's going to work," Gray said, "so let's start out with a small quantity that would be a good test of whether it might work or not first."
- Mail-back envelopes. Many retail drug stores now sell pre-paid unused-medication envelopes, to more easily dispose of unwanted prescription drugs. "The envelopes are approved by the federal government," Gray said. "That is probably the most convenient at this point."
Opioids are the most-misused and dangerous medication, he said, but they're not the only ones that can be deadly.
"That's just one category," he said. "You can really hurt yourself with opioids, but many times people think, 'I have diabetes, too,' and they can kill themselves by taking someone else's diabetes medication."
Gray said his own parents lived through the Great Depression, "and they don't like to see anything thrown away," he said. "They think, 'Maybe someday I'll need that.' This is a real problem with seniors."
David Gorn is a senior reporter with California Healthline.