If you eat an excessive amount of fat or calories,
the excess is stored as fat by the body, resulting
in weight gain. When you eat fat, your body breaks
it down into its simplest components so that it can
be digested.
Unlike other weight-loss drugs you may have heard
about that act in the brain or central nervous system
to suppress appetite or to speed up metabolism, XENICAL
works in your digestive system to block about one-third
of the fat in the food you eat from being digested.
Enzymes in your digestive system, called lipases,
help digest (or break down) fat. When taken with meals,
XENICAL attaches to the lipases and blocks them from
breaking down some of the fat you have eaten.
Enzymes in your digestive system, called lipases,
help digest (or break down) fat. When taken with meals,
XENICAL attaches to the lipases and blocks them from
breaking down some of the fat you have eaten.
The undigested fat cannot be absorbed
and is eliminated in your bowel movements. By working
this way, XENICAL helps block about one-third of the
fat in the foods you eat from being absorbed by your
body.
The recommended dose is one 120-mg capsule by mouth
with liquid at each main meal that contains fat. You
should take XENICAL up to three times a day in conjunction
with a reduced-calorie diet. Each time you take XENICAL,
your nutritionally balanced meal should contain no
more than about 30% of calories from fat. You should
evenly divide your daily intake of fat, carbohydrates
and protein over three main meals. Take XENICAL during
meals or up to 1 hour after a meal. If you occasionally
miss a meal or have a meal without fat, you can omit
your dose of XENICAL. Doses above 120-mg three times
daily have not been shown to provide an additional
weight-loss benefit.
XENICAL interferes with your body's absorption of
some fat-soluble vitamins. Therefore, when you use
XENICAL, you should take a daily multivitamin supplement
that contains vitamins D, E, and K and beta carotene.
Take your multivitamin once a day at least 2 hours
before or after taking XENICAL, such as at bedtime.
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