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Updated: Feb 7, 2026

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Formation of Dispersible Taohong Siwu Tablets
Published on: February 3, 2023
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Dose-ranging study of an orlistat tablet formulation.
Summary
Orlistat tablets effectively inhibit dietary fat absorption, with higher doses leading to increased fecal fat excretion. The 48-mg tablet showed similar efficacy to the 60-mg capsule.
Area of Science:
- Pharmacology
- Gastroenterology
Background:
- Orlistat is a lipase inhibitor used for obesity management.
- Understanding dose-response relationships for different formulations is crucial for optimizing treatment.
Purpose of the Study:
- To compare the efficacy of various doses of orlistat tablets in inhibiting dietary fat absorption against a standard orlistat capsule.
- To evaluate the dose-dependent effect of orlistat tablets on fecal fat excretion.
Main Methods:
- A randomized, open-label study involving 83 overweight/obese subjects.
- Subjects received one of six treatment arms: orlistat tablets (24, 36, 48, 72, 144 mg) or a 60-mg orlistat capsule.
- Fecal fat content was analyzed before and after treatment.
Main Results:
- The 48-mg orlistat tablet demonstrated comparable dietary fat absorption inhibition to the 60-mg orlistat capsule (mean fecal fat: 16.5% vs. 16.8%).
- A dose-dependent increase in fecal fat excretion was observed with orlistat tablets, with the 144-mg dose resulting in approximately 2.5 times greater excretion than the 24-mg dose.
- No new safety concerns were identified during the study.
Conclusions:
- Orlistat tablet efficacy in inhibiting dietary fat absorption is dose-dependent.
- Increasing the dose of orlistat tablets leads to a proportional increase in fecal fat excretion.
- The 48-mg orlistat tablet offers comparable efficacy to the 60-mg capsule.
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