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Drug Infonet provides drug and disease information for your healthcare needs. Visit our FAQ page to find answers to common health questions. Look on the Manufacturer Info page to link to pharmaceutical company pages. Click to Health Info and Health News for the latest in healthcare developments. Doctors' Answers to "Frequently Asked Questions" - Xenical
Answer: Xenical is a drug designed to lose weight. It does it by inhibiting the enzymes that are produced by the pancreas. This does not allow the fat in your food to be broken up into smaller absorbable pieces. Consequently, the fat cannot be absorbed and passes out your colon. Diarrhea is a common problem. Also, one needs to ensure that the fat absorbable vitamins(A,D,E,K) are not passed with the fat in your stool. To do this take a vitamin at a time when the xenical is not present. The drug is taken thirty minutes before a meal or forty five minutes after to have maximum effect and is not taken if you are not eating. It should be avoided for a very heavy fatty meal since the diarrhea can be uncontrollable at these times. I am not familiar with duromine(nor is it listed in the PDR, can you check the spelling).
Answer: Okay as long as you take the wellbutrin at a different time from the xenical so the xenical does not block the absorption of the wellbutrin.
Answer: Yes, but not simultaneously. There may be interference with absorption of the lipitor.
Answer: Xenical is a Class B drug in pregnancy. Studies done in animals in high dosage have demonstrated no appreciable fetal damage/malformation. Studies have not been done on the drug in humans due to ethical considerations. I have no information 0n the Metab-O-Lite, check with the company.
Answer: I wouldn't. Try one at a time and ensure you take your other medications separate from the xenical if that is your option.
Answer: The prescription one is called Xenical. After your food leaves the stomach, it enters the small intestine. At this point, the pancreas produces different enzymes to cut up the big molecules and allow them to be absorbed. One of these is an enzyme that cuts/reduces fat molecules. Xenical blocks the ability of this enzyme to work. Consequently, you cannot absorb most of the fat and it passes through the stool and out the other end. It needs to be taken 30 minutes before or 45 minutes after eating. It can produce Vitamin A,D,E,K malabsorption since these are fat soluble vitamins, consequently you'll need to take a multivitamin some time away from the Xenical. It only works if you eat, so if you have a small meal, a very low fat meal or don't eat it does not help to take it. Taking it with a very high fat meal(prime rib with sour cream for example) can result in uncontrolled diarrhea-even to loss of bowel control. So, most patients learn to reduce the fat in their meals to avoid this and not take it with the really fat excessive meals. It's not cheap but works without many systemic side effects since it only works in the small intestine. There is concern about blood vitamin levels with this drug and this needs to be watched closely. It is relatively new and we may find problems that we don't suspect due to it's relative newness.
Answer: There are no direct studies of the fetal problems with these drugs. Xenical is not supposed to be absorbed, but does affect fat soluble vitamin absorption. Any vitamin deficiency can affect a child, but unlikely if you have been on supplements. Adipex is in unknown territory.
Answer: You'd have to ask your md about their prescription practices, most mds wouldn't have this problem. Merida works but is slow and expensive. It achieves about 2 pounds a month at a cost of 60-70$. Xenical works better but tends to cause some diarrhea-especially with high fat meals. There is some concern about vitamin metabolism with xenical-especially A,D,E,K. I've had better luck with xenical and don't use meridia much.
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