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Xenical Side Effects

Xenical's main active ingredient is Orlistat, and it was approved by the FDA in 1999 for use by certain obese individuals to help them lose weight and maintain this weight loss.

Common Xenical Side Effects

Rectal discomfort or pain, respiratory tract infections, abdominal discomfort or pain, anxiety, muscle pain, nausea, arthritis, back pain, diarrhea, dizziness, earache, fatigue, fatty or oily stools, fecal urgency or incontinence, flu, gas with fecal discharge, gum problems, headache, increased defecation, menstrual problems, oily discharge, skin rash, sleep problems, tooth problems, urinary tract infections, vaginal inflammation, vomiting. Xenical side effects are more common during the first year of treatment.

It is quite possible for side effects other than those listed here to occur. If this happens and/or if any seem particularly strange or bothersome, contact a healthcare provider.

Special Xenical Precautions

Along with dietary fat, Xenical also decreases the absorption of some fat-soluble vitamins and beta-carotene. To compensate for this, patients using Xenical should take a multivitamin containing vitamins A, E, D, and K once a day, at least two hours before or two hours after taking Xenical.

Side effects such as diarrhea and abdominal pain may be made worse if the Xenical patient maintains a high-fat diet or even takes a high-fat meal. Xenical users should definitely limit their fat intake.

Xenical use increases the likelihood of kidney stones. Thus, Xenical patients should use it with caution if they have had a history of this problem.

If Xenical is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important for a Xenical patient to check with their healthcare provider before combining Xenical with the following drugs - Cyclosporine (Neoral and Sandimmune) and Warfarin (Coumadin).

The effects of Xenical during pregnancy have not been fully studied and so it is not recommended for pregnant women. Xenical patients who are pregnant or plan to become pregnant, should inform their healthcare provider immediately.

Warning: This information is intended to supplement, not be a substitute for the expertise and judgment of a doctor. Please consult a doctor for final and more detailed information about the possible side effects of this prescription medication.
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