Madeleine Hull
Orlistat is a medication used to aid weight loss and is available over the counter or by prescription. It works by inhibiting the body's absorption of fat by approximately 30% and is usually taken during or within an hour of a fat-containing meal. It is recommended that orlistat be taken in conjunction with a nutritionally balanced, reduced-calorie diet and regular exercise. As orlistat can interfere with the absorption of some vitamins, it is advised that users take a daily multivitamin supplement. Orlistat may not be suitable for those with certain health conditions, such as gallbladder problems, and it is not recommended for pregnant or breastfeeding women.
| Characteristics | Values |
|---|---|
| Use | Weight loss |
| Availability | Over-the-counter (OTC) and with a doctor's prescription |
| Dosage | 120 mg capsule orally thrice daily |
| Diet | Reduced-calorie, low-fat, balanced, and regular exercise |
| Side effects | Oily poop, gas, increased pooping frequency, decreased control of pooping, gallstones, allergic reactions |
| Precautions | Do not take if pregnant or breastfeeding, do not take with a meal high in fat, do not let anyone else take your prescription medication, do not take with certain medicines |
| Multivitamins | Take a daily multivitamin that contains vitamins A, D, E, K, and beta-carotene |
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What You'll Learn
Orlistat is used for weight loss
Orlistat is a weight-loss medication that reduces the amount of fat absorbed by the body. It is intended for use alongside a reduced-calorie diet and regular exercise program. It is typically used by people who are overweight or obese.
Orlistat is available in capsule form and should be taken with water during or within an hour of meals that contain fat. If a meal is skipped or contains very little fat, the dose can be omitted. It is important not to take extra doses of Orlistat to make up for missed ones. Orlistat may cause side effects such as oily faeces, flatulence, increased bowel frequency, and decreased bowel control. Eating meals with a high fat content may increase the risk of these side effects.
Orlistat can also decrease the absorption of certain fat-soluble vitamins and beta carotene. It is recommended that individuals taking Orlistat take a daily multivitamin containing vitamins A, D, E, K, and beta carotene. The multivitamin should be taken two hours before or after taking Orlistat to ensure effectiveness.
Orlistat is not suitable for everyone. It should not be taken by pregnant or breastfeeding women, those with certain health conditions (such as gallbladder problems or cholestasis), or those with a history of eating disorders or organ transplants. It may also interact with other medications and supplements, so it is important to consult a healthcare professional before taking Orlistat to ensure it is safe and appropriate for individual needs.
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It blocks fat absorption
Orlistat is a weight-loss medication that has been approved by the US Food and Drug Administration (FDA). It is designed to help people lose weight and maintain weight loss while eating a reduced-calorie diet. Orlistat blocks the absorption of fat by inhibiting lipases in the gastrointestinal tract. Lipases are enzymes that play a crucial role in the digestion of dietary fat by breaking down triglycerides into absorbable free fatty acids and monoglycerides. By blocking these lipases, orlistat prevents the absorption of fat, which leads to a reduction in calorie intake.
The primary action of orlistat is localized lipase inhibition within the gut, which means that it does not need to be absorbed into the bloodstream to be effective. This also minimizes the risk of interactions with other medications. Orlistat is typically taken with each main meal that contains about 30% of calories from fat or within one hour after the meal. If a meal is skipped or does not contain fat, the dose of orlistat can be omitted. It is important to note that orlistat should be used in conjunction with a well-balanced, reduced-calorie, and low-fat diet to maximize its effectiveness and minimize potential side effects.
One of the key enzymes inhibited by orlistat is pancreatic lipase. By blocking this enzyme, orlistat slows down the digestion of fat in the intestine, thereby reducing its absorption into the body. This reduction in fat absorption contributes to a caloric deficit, which is essential for weight loss. Orlistat has been shown to reduce the absorption of dietary fat by approximately 30% at the recommended dosage of 120 mg per day. This percentage change in weight is also associated with a slight reduction in blood pressure.
In addition to blocking fat absorption, orlistat also has a beneficial effect on carbohydrate metabolism. Research has shown that orlistat significantly lowers serum uric acid levels in adult patients. This is particularly important for individuals with obesity, as obesity increases the risk of hyperuricemia and cardiovascular disease. However, it's important to note that orlistat can also decrease the absorption of certain fat-soluble vitamins, such as vitamins A, D, E, K, and beta-carotene. Therefore, it is recommended that individuals taking orlistat also take a daily multivitamin to ensure adequate nutrient intake.
Overall, orlistat is a safe and effective weight-loss medication that helps block fat absorption in the body. It is important to use it in conjunction with a healthy diet and regular exercise for optimal results. As with any medication, it is always advisable to consult with a healthcare professional before starting orlistat to ensure it is suitable for your individual needs and to minimize the risk of any potential side effects.
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It may cause gallstones
Orlistat is a weight-loss medication that decreases the amount of fat absorbed by the body. It is derived from lipstatin, the natural product of Streptomyces toxytricini. It is intended to be used in conjunction with a reduced-calorie diet, regular exercise, and a multivitamin regimen.
Orlistat may cause gallstones, also known as cholelithiasis. Obese individuals are at a heightened risk of developing gallstones, and weight loss is a contributing factor. Orlistat has been found to significantly reduce gallbladder emptying, which may contribute to the development of gallstones. In one study, three out of 40 patients developed gallstones, one of whom was taking 60 mg of orlistat.
The gallbladder is a small organ located in the upper right quadrant of the abdomen, below the liver. It stores bile, a digestive fluid produced by the liver, and releases it into the small intestine to aid in the digestion of fats. Gallstones are solid particles that form in the gallbladder, ranging in size from a grain of sand to a golf ball. They can be made of cholesterol, calcium salts, or bile pigments, among other substances.
Gallstones can cause intense pain, known as a gallbladder attack or biliary colic, which may occur if a stone blocks the cystic duct or the common bile duct. Symptoms of a gallbladder attack include sudden and rapidly intensifying pain in the upper right abdomen, which may radiate to the back or below the right shoulder blade. Nausea, vomiting, and fever may also be present. If you experience any of these symptoms while taking orlistat, seek immediate medical attention.
If you have a history of gallbladder problems, orlistat may not be suitable for you. It is important to disclose any health conditions and medications you are taking to your doctor or healthcare provider before starting orlistat. They will be able to advise you on whether orlistat is appropriate for you and monitor you for any potential side effects.
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It can cause allergic reactions
Orlistat is a medication used for weight loss. It is available by prescription and over the counter. It is used in conjunction with a low-calorie, low-fat diet and exercise program to help people lose weight and maintain their weight loss. It works by blocking the absorption of some of the fat in food in the intestines, which is then removed from the body in the stool.
While orlistat is a useful medication for weight loss, it can cause allergic reactions in some people. People who are allergic to any of the ingredients in orlistat should not take it. If you experience an allergic reaction, you should stop taking orlistat and seek medical help right away. Signs of an allergic reaction include hives, difficulty breathing, and swelling of the face, lips, tongue, or throat.
In addition to allergic reactions, orlistat can also cause other serious side effects, such as liver damage, kidney problems, and gallbladder issues. It is important to be aware of these potential side effects and to contact your healthcare provider if you experience any of them.
Before taking orlistat, it is important to discuss your medical history and any other medications or supplements you are taking with your healthcare provider. Orlistat may not be suitable for everyone, and it is important to ensure that it is safe for you. For example, orlistat should not be taken by pregnant or breastfeeding women, or by those with certain medical conditions such as malabsorption syndrome, gallbladder problems, or cholestasis.
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It may interact with other medicines
Orlistat is a medication used to help people lose weight and maintain weight loss while eating a reduced-calorie diet. It decreases the amount of fat that is absorbed from food. It is available in oral tablet formulations, with strengths of 60 mg (available over the counter) and 120 mg (prescription product). The prescription dosage is typically a 120 mg capsule taken orally three times a day with each main meal containing fat.
Orlistat may interact with other medicines and supplements. It is important to inform your healthcare provider about any prescription or over-the-counter medications, vitamins, minerals, herbal products, and other supplements you are currently taking or plan to take. This includes any blood clot medications such as warfarin, enoxaparin, dalteparin, apixaban, dabigatran, edoxaban, and rivaroxaban.
Additionally, orlistat should not be used in combination with cyclosporine, an immunosuppressant, or levothyroxine, a thyroid hormone-raising medication. It can also interfere with medications used to prevent transplant rejection.
Orlistat can also decrease the absorption of certain vitamins and nutrients, including fat-soluble vitamins A, D, E, K, and beta-carotene. Therefore, it is recommended to take a daily multivitamin containing these vitamins, either two hours before or after taking orlistat or at bedtime.
It is important to be cautious and consult a healthcare professional before taking orlistat, especially if you have any existing health conditions or are pregnant or breastfeeding.
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Frequently asked questions
Orlistat is a medication used to help people lose weight and maintain weight loss while eating a reduced-calorie diet. It decreases the amount of fat that is absorbed from food.
Orlistat is available both over-the-counter (OTC) and with a doctor's prescription. It is sold in capsule form.
Common side effects include oily faecal matter, gas, increased frequency of defecation, and decreased control of defecation. Orlistat may also cause gallstones and severe allergic reactions.
Before taking orlistat, you should tell your doctor about any health conditions, allergies, and medicines or supplements you are taking. Orlistat should not be taken if you are pregnant or breastfeeding, have had an organ transplant, or have certain health conditions such as gallbladder problems or cholestasis.
