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Author: Admin | 2025-04-28
Such as body composition, ethnicity, race, gender, and age. Despite being a flawed measure, BMI is widely used today in the medical community because it is an inexpensive and quick method for analyzing potential health status and outcomes. How Does Phentermine Work in the Body? Phentermine belongs to a class of medications called indirect sympathomimetics. Sympathomimetics activate the sympathetic nervous system. Indirect sympathomimetics act indirectly on different receptors. Phentermine has been shown to work in the central nervous system to help reduce appetite. Studies have shown that it acts on the hypothalamus. Phentermine stimulates the release of chemical neurotransmitters in the brain, such as norepinephrine, suppressing appetite. A decrease in appetite will help reduce the amount of calories you eat, which may contribute to weight loss. This medication should be used alongside a reduced-calorie diet and regular exercise. How Long Does It Take to Work? Phentermine has been shown to start working in the body within three to four hours. You may notice effects within a few days. However, it may take a few weeks to see some weight loss. Phentermine is only meant for short-term use–usually less than 12 weeks at a time. However, phentermine combined with topiramate may be a longer-term solution for adults needing chronic weight management. Reducing daily calorie consumption and performing regular exercise while taking phentermine may speed up weight loss. If you don't notice any weight changes, or if you experience any issues with this medication, contact your healthcare provider. How to Take Phentermine
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