Combating the polypharmacy problem

(CBSNews) Problems with taking multiple drugs are not limited to drug abusers. In the last 10 years, the percentage of people over 60 who take five or more medications has jumped from 22 percent to 37 percent. CBS News medical correspondent Dr. Jon LaPook looks into in the risks.

Fifty-two-year-old Lenette Martin takes so much medicine, she's lost count.

"Regularly, I take 11, maybe 12," she said.

It's 12, plus four over-the-counter. Martin is one of more than 30 million Americans taking five or more prescription drugs, often called polypharmacy. With each added drug, the risk of side effects increases. For example, Prilosec, which lowers stomach acid, can weaken the effect of the blood thinner Plavix.

Dr. Jerry Avorn of Boston's Brigham and Women's Hospital studies prescription drug use.

"The assumption is," he said, "'Well, you're 80-something years old, no wonder you're dizzy. No wonder you're forgetful. No wonder you're not able to get out of bed in the morning.' -- when, in fact, it may not be because you're getting old. It may be because you're having a drug side effect."

Some primary care doctors are trying a new approach -- bringing pharmacists like Sonia Freitas from behind the counter to the office.

"Do you ever look at a bottle and say, 'Wait a second. We didn't even prescribe this. I didn't even know you were taking this,'" LaPook asked Freitas.

"Oh, yes. Oh, yes, that happens a lot. That happens a lot. It happened to me earlier today before this session."

The day we visited, she sat down with Martin and reviewed every single drug.

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Combating the polypharmacy problem