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Orlistat Disease Interactions

There are 4 disease interactions with orlistat:

Major

Orlistat (Includes orlistat) ↔ malabsorption

Severe Potential Hazard, High plausibility. Applies to: Malabsorption Syndrome, Biliary Obstruction

The use of orlistat is contraindicated in patients with chronic malabsorption syndrome or cholestasis. Orlistat can worsen the malabsorption in these conditions by reversibly inhibiting lipases that are necessary for the hydrolysis of triglycerides into absorbable free fatty acids and monoglycerides. At the recommended therapeutic dosage of 120 mg three times a day, orlistat inhibits dietary fat absorption by approximately 30%.

References

  1. "Product Information. Xenical (orlistat)." Roche Laboratories, Nutley, NJ.
Moderate

Obesity drugs (Includes orlistat) ↔ diabetics

Moderate Potential Hazard, High plausibility. Applies to: Diabetes Type 2

Obese, type 2 diabetic patients who achieve weight loss may demonstrate improved metabolic control of their disease as a result of their reduced weight. Therefore, patients with type 2 diabetes mellitus should be monitored during weight-reduction therapy (or therapy that may be expected to induce significant weight loss as a secondary effect) for hypoglycemia and reduced need for oral hypoglycemic medication or insulin, and the dosages of these agents adjusted accordingly. Patients should be apprised of the risk of hypoglycemia and be alert to potential signs and symptoms such as headache, dizziness, drowsiness, nervousness, confusion, tremor, hunger, weakness, perspiration, and palpitation.

References

  1. "Product Information. Xenical (orlistat)." Roche Laboratories, Nutley, NJ.
  2. "Product Information. Meridia (sibutramine)." Knoll Pharmaceutical Company, Whippany, NJ.
  3. "Product Information. Dexedrine (dextroamphetamine)" SmithKline Beecham, Philadelphia, PA.
  4. "Product Information. Prelu-2 (phendimetrazine)" Boehringer-Ingelheim, Ridgefield, CT.
  5. "Product Information. Didrex (benzphetamine)" Pharmacia and Upjohn, Kalamazoo, MI.
  6. "Product Information. Desoxyn (methamphetamine)" Abbott Pharmaceutical, Abbott Park, IL.
  7. "Product Information. Tenuate (diethylpropion)" Aventis Pharmaceuticals, Swiftwater, PA.
  8. "Product Information. Sanorex (mazindol)" Novartis Pharmaceuticals, East Hanover, NJ.
  9. "Product Information. Fastin (phentermine)." SmithKline Beecham, Philadelphia, PA.
View all 9 references
Moderate

Orlistat (Includes orlistat) ↔ (fat soluble) vitamin deficiency

Moderate Potential Hazard, High plausibility. Applies to: Vitamin A Deficiency, Vitamin D Deficiency, Vitamin K Deficiency

At the recommended therapeutic dosage of 120 mg three times a day, orlistat inhibits dietary fat absorption by approximately 30% and has been shown to reduce the absorption of some fat-soluble vitamins and beta-carotene. Therapy with orlistat should be administered cautiously in patients with preexisting deficiency of one or more fat-soluble vitamins (A, D, E and K). Ideally, the deficiency should be corrected prior to initiation of therapy. A multivitamin supplement containing fat-soluble vitamins is recommended during therapy, best taken once a day at least 2 hours before or after the administration of orlistat.

References

  1. "Product Information. Xenical (orlistat)." Roche Laboratories, Nutley, NJ.
Moderate

Orlistat (Includes orlistat) ↔ nephrolithiasis

Moderate Potential Hazard, Moderate plausibility. Applies to: Nephrolithiasis

Following treatment with orlistat, some patients may develop increased levels of urinary oxalate as a result of fat malabsorption. Therapy with orlistat should be administered cautiously in patients with a history of hyperoxaluria or calcium oxalate nephrolithiasis.

References

  1. "Product Information. Xenical (orlistat)." Roche Laboratories, Nutley, NJ.

Orlistat drug interactions

There are 186 drug interactions with orlistat

Orlistat alcohol/food interactions

There is 1 alcohol/food interaction with orlistat

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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