Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Asthma Health Center

Font Size

Asthma Study Shows Placebo Can Help Symptoms

Researchers Find That Fake Treatment Doesn't Help Lungs, yet Asthma Patients Feel Much Better
WebMD Health News
Reviewed by Laura J. Martin, MD

July 13, 2011 -- Caring may count as much as medicine when it comes to making a sick person feel better -- even when that person really needs the medicine, a new study suggests.

The placebo effect is a well-known phenomenon in which people get better when given a fake (placebo) treatment. It sometimes works even when people aren't fooled -- when they know they're getting a sugar pill instead of a drug.

Now a study suggests that placebos can be effective in reducing symptoms in patients with asthma. The caring that comes with treatment -- even fake treatment -- is just as important, find Ted J. Kaptchuk, associate professor of medicine at Harvard Medical School, and colleagues.

"Our data give a realistic and overall optimistic perspective on the importance of understanding that the doctor-patient relationship and caring is as critical a component of medicine as the medical procedure," Kaptchuk tells WebMD.

Real Treatment vs. Placebo

In the study, 39 asthma patients stopped taking their asthma drugs and then underwent three rounds of treatment, in random order, with four different regimens:

  • Active treatment with an albuterol inhaler (albuterol brand names include Accuneb, Proair, Proventil, and Ventolin)
  • Placebo treatment with an inhaler that had no active drug
  • Placebo treatment with "fake" acupuncture (using a device that seems to puncture the skin but does not)
  • No treatment

In all four treatment regimens, patients had their lung function tested every 20 minutes for two hours.

As expected, treatment with the real albuterol inhaler improved the asthma patients' lung function by 20% -- a clinically significant effect, according to study researcher Michael E. Wechsler, MD, associate director of the asthma research center at Brigham and Women's Hospital, Boston.

Patients' lung function also got a little bit better with placebo -- about 7% better. But those getting no treatment also got 7% better. Clearly, as far as lung function was concerned, there was no placebo effect.

But when asked how much better they felt after treatment, patients said they felt 46% better after fake acupuncture and 45% better after fake inhaler treatment -- just about even with the 50% better after getting the real asthma drug. With no treatment, they felt only 21% better.

1 | 2 | 3

When Is Your Asthma Worse?

When Is Your Asthma Worse?

Take the WebMD Asthma assessment to get Personalized Action Plan

Start Now

Today on WebMD

Lung and bronchial tube graphic
5 common triggers.
group jogging in park
Should you avoid fitness activities?
asthma inhaler
Learn about your options.
man feeling faint
What’s the difference?
Madison Wisconsin Capitol
woman wearing cpap mask
red wine pouring into glass
Woman holding inhaler
Man outdoors coughing
Lung and bronchial tube graphic
10 Worst Asthma Cities