Despite its name, the highly hyped weight-loss drug Alli may not be your friend.
Friends don't put friends in embarrassing situations.
Alli, whose pharmaceutical name is Orlistat, is a 50 percent reduced-strength version of the prescription drug Xenical. The drug's primary function is to prevent the absorption of fats from the diet, which results in losing weight, said Dr. Jan McBarron, a Columbus physician whose speciality is weight control.
The drug, however, has unpleasant -- potentially humiliating -- side effects. They include "gas, incontinence and oily spotting. These side effects are obviously quite uncomfortable and inconvenient at times, and have caused some individuals to think twice about taking this drug," according to www.skinny-
ondiets.com.
"Everybody is asking questions about it, but we haven't had too many people get it," said Sumner Kelly, a pharmacist at Dinglewood Pharmacy. "They ask about the side effects, and they don't want to buy it because of the side effects."
Those who take the drug will soil their clothes, McBarron said. According to Alli's maker, GlaxoSmithKline, the side effect can be seen as a behavior-modification tool.
"It's called rectal leakage -- and it's really uncontrollable. It's 'you need a diaper' controllable," McBarron said. "And it happens in everybody. Not just some people. It is a consequence of taking the drug."
Possible dangers
Leakage may be embarrassing, but the drug also poses some danger. The real danger is that, in addition to blocking some of the fat you are eating, it also blocks the fat-soluble vitamins in the body, some of which are antioxidant vitamins that are necessary for vision and slowing down the aging process. Antioxidants are also necessary for those who are hypertensive or diabetic, McBarron said.
"In the very age population that needs these nutrients, you are giving them something that will take them away," McBarron said. "And that's really the danger of it."
When a person dies of starvation, that person doesn't die because the body didn't get any calories -- he or she dies because the body received no nutrition, she said.
McBarron said people who decide they want to take the drug should understand that Orlistat is not an appetite suppressant.
"You are going to be as hungry as you always are. And you really have to limit your fat intake," she said. "The drug is often misused because people know it is a fat blocker, and they think they can chow down on burgers and fries and onion rings and the fat blocker will block some of the fat.
"The more fat in your diet, the worse the side effects are," she said. "So you have to be on a low-fat diet if you're going to do this. The perception is, 'This is a fat blocker so I can eat as much fat as I used to and it will block some of it, and I will be fine.' "
That is not the case. The more fat a person eats, the more leakage he or she will experience, McBarron said.
Mechanism
The drug works by inhibiting an enzyme in the pancreas that is responsible for breaking down triglycerides in the intestine. Without the enzyme, fats are prevented from becoming absorbable and may then be excreted undigested. It is estimated that the drug blocks approximately 25 percent of all fat in the diet, roughly 150 to 200 calories per meal, according to skinnyondiets.com.
McBarron said she never thought the drug was very effective. According to studies, the average weight loss is 10 pounds a year, she said.
McBarron said she has had patients ask for the drug, but never more than once.
"Never had a refill -- ever. Ever," she said. "People say 'I really want to try it.'... Then they'd get it and they'd never finish the bottle and they'd never ask me for a refill. They'd come back and want something different, but not that again."
The reintroduction of Xenical in a reduced strength -- as Alli -- was simply a way for the drug company to make more money, McBarron said.
Typically when the time runs out on the patent for a medication, other companies duplicate the product. In this case, McBarron said, the pharmaceutical company convinced the FDA to let them cut the dosage in half and sell it over the counter.
"But cutting the dose in half does not mean you get half the side effects," McBarron said. "Not at all."
Src: http://www.ledger-enquirer.com/news/story/76884.html