Frequently Asked Questions

What is the Obalon Balloon System?
The Obalon Balloon System is the FIRST and ONLY swallowable, FDA-approved
balloon system for weight loss. The non-surgical treatment consists of 3
lightweight, buoyant balloons, placed gradually over 3 months, occupying space in
a patient’s stomach. The Obalon Balloon System facilitates weight loss in adults
with obesity (BMI of 30 – 40 kg/m2) who have failed to lose weight through diet
and exercise. The System is intended to be used as an adjunct to a moderate
intensity diet and behavior modification program. All balloons must be removed 6
months after the first balloon is placed.

How does the Obalon Balloon System work?
The Obalon Balloon System helps facilitate weight loss by taking up space in a
patient’s stomach so the patient eats less. During treatment, patients receive
professional nutrition and exercise support to help make the lifestyle changes that
facilitate weight loss. The Obalon Balloon System provides support to help change
eating habits and keep the weight off for the long-term.

What commitment is required of patients?
The Obalon Balloon System can assist with weight loss efforts, but weight loss
success is also dependent on the patient’s readiness to develop new lifestyle skills.
The degree of long-term weight loss will depend on the ability to modify lifestyle
and maintain this behavior after the balloons are removed. It is important that
patients discuss their willingness to accept this commitment with their physician
before undergoing the Obalon Balloon System.

Who can get the Obalon Balloon System?
Adult men and women are a candidate for the Obalon Balloon System if they are
30 to 100 pounds overweight. The program begins with the placement of the
Obalon Balloons in the stomach for up to six months. The program includes a
healthy diet and exercise program.

What weight loss results should patients expect?
In a large clinical study, the Obalon Balloon System was shown to help adults
experience clinically meaningful weight loss. Patients lost twice as much weight as
diet and exercise alone. Six months after the balloons were removed, 89% of the
weight lost was kept off, when combined with diet and exercise.

How long is the treatment?
The Obalon Balloon treatment is a 6-month treatment. After the first balloon the
doctor will usually have patients swallow a second balloon capsule 1 month after
the first balloon and a third balloon capsule 2 months after the second balloon. All
balloons will be taken out 6 months after the first balloon capsule is swallowed.

How is the Obalon Balloon System placed?
Placement of the Obalon Balloon System typically takes less than 10 minutes and
does not require sedation. In a physician’s office, patients swallow a capsule
containing a small balloon and then the physician inflates the balloon. In the
clinical study, after placement, most patients returned to normal activities with no

How are the balloons removed?
At the end of the 6-month treatment period, all three balloons are removed by a
brief, approximately 15 minute, outpatient endoscopic procedure which is
performed under light, conscious sedation.

How many balloons are used during the treatment period?
Three (3) lightweight, buoyant balloons are placed gradually over 3 months to
maximize patient tolerability and facilitate continual weight loss throughout the 6-
month treatment period. Optimal weight loss is achieved with 3 balloons. Those
treated with 3 balloons lost more than 4x as much weight as those treated with 2
balloons. All balloons must be removed 6 months after the first balloon is placed.

How large is the Obalon Balloon?
A fully inflated single balloon is about the size of a small orange and weighs
approximately 3 grams (about a penny).

What should patients expect when using the Obalon Balloon System?
Physicians will work closely with patients to help develop healthy eating and
exercise habits, such as making the right food choices and appropriate portion
sizes. Because the balloons take up space in the stomach, patients will not be able
to eat the same quantity of food previously consumed.

What are the potential side effects of the Obalon Balloon System?
The Obalon Balloon System is a safe and effective, FDA-approved, non-surgical
weight loss system. In our clinical trial, the majority of adverse events were
reported as mild and consisted of abdominal pain and nausea (serious side effects
were less than 0.3%). Physicians will discuss more details on the potential side
effects, precuations, warnings and other important safety information. Patients
can find a complete list of adverse events reported in the clinical trial as well as
other important safety information on our website, in the safety
information section.

Will the Obalon Balloon System limit my activity?
Patients usually resume normal activities immediately after the balloon placement
procedure. See safety information section and patient labeling for contraindicated
activities with the Obalon Balloon System at

What happens after patients get the Obalon Balloon System?
It is important that patients listen to the instructions provided by their physician
and office staff who are available to assist in weight loss efforts. They will develop
a follow-up schedule to further support patients’ weight loss routine. As patients
become aware that they are eating less, it is important to adopt a healthy lifestyle
by making healthy food choices and making exercise a priority.

How much does the Obalon Balloon System cost?
The average cost for the treatment program, including 3 balloons, nutritional
support and balloon removal, often ranges from $6,000 to $9,000. Individual
pricing may vary based on the physicians within a geography. The Obalon Balloon
System is not covered by insurance. Many physicians offer financing options to
help patients achieve their weight loss goals.

Who cannot get the Obalon Balloon System?
Men and women are NOT a candidate for Obalon if:

• You have any problems with swallowing, any or prior surgeries that would
make it difficult to swallow the Obalon balloon capsule.

• You take prescription aspirin, anti-inflammatory agents (such as Advil or
Motrin), anticoagulants (blood thinner) or other gastric irritants daily. Taking
these drugs on a daily basis increases the possibility of gastric irritations and
ulcers when you have the balloons in your stomach.

• You have had prior surgeries or condition that may have led to a narrowing
or blockage of your gastrointestinal (GI) tract. If 1 or more of the balloons
deflates and passes into your intestines, it will cause a blockage also known
as an obstruction and must be surgically removed. This bowel obstruction
can lead to serious injury and even death.

• You have ever had weight loss surgery such as a gastric sleeve or lap-band.
This does not include the other stomach balloons. Failure to follow this
warning may result in damage to your stomach or intestines that may
require surgery to repair.

• You have an untreated Helicobacter pylori infection. Having this infection
increases the possibility of gastric irritations and ulcers.

• You are unable or unwilling to take prescribed proton pump inhibitor
medication for the duration of the device implant. Not taking these
medications increases the possibility of gastric irritations and ulcers. You have allergies to products/foods of porcine origin. You might experience
an allergic reaction to the capsule.

• You have been diagnosed including but not limited to bulimia, binge eating
disorder, compulsive overeating disorder, or your daily diet includes very
high calorie liquids. The balloons may not help you lose weight if you have
these eating disorders or these habits.

• You have a history of structural or functional disorders of the stomach
including, gastroparesis (stomach emptying disorder), gastric ulcer, chronic
gastritis (stomach irritation), gastric varices (veins in your stomach that
bleed), large hiatal hernia (> 2 cm), cancer or any other disorder of the
stomach. If you have one of these disorders you may not be able to swallow the Obalon Balloon capsule, or the balloon may not inflate properly or you
will have increased risk of gastric irritations and ulcers.

• You require the use of anti-platelet drugs or other agents affecting the
normal clotting of blood. Use of these drugs may cause you to bleed more
during the removal process of the balloons.

• You have a history of irritable bowel syndrome, Crohn’s disease, or other
diseases of your bowel system. If 1 or more of the balloons deflates and
passes into your intestines, it will cause a blockage also known as an
obstruction and must be surgically removed. This bowel obstruction can lead
to serious injury and even death.

• You are taking medications on specified hourly intervals that may be
affected by changes in gastric emptying, such as anti-seizure or antiarrhythmic
medications. Placement of the balloons in your stomach may
further affect gastric emptying and motility. You have untreated or unstable alcohol or illicit drug addiction.

• You are pregnant or nursing.

Please review the list of contraindications, warnings, precautions and important
safety information at