Phentermine is a prescription weight loss medication. It was approved by the FDA in for short-term use of up to 12 weeks for people older than 16 1. In the s, phentermine was combined with other weight loss drugs.
This drug combination was commonly called fen-phen. After reports of significant heart problems in users, the FDA pulled the other two drugs used in the treatment — fenfluramine and dexfenfluramine — from the market 2.
Phentermine goes by the brand names Adipex-P, Lomaira, and Suprenza, or you can find it in combination medications for weight loss, such as Qsymia. Phentermine is an FDA-approved drug intended for weight loss. Taking phentermine helps suppress your appetite, thereby limiting how many calories you eat.
Over time, this can lead to weight loss. While the exact mechanisms behind the appetite-reducing effects of phentermine remain unclear, the drug is thought to act by increasing neurotransmitter levels in your brain 6 , 7. However, you may build a tolerance to the appetite-suppressing effects of phentermine within a few weeks. In that case, you should not increase your dose of the drug but stop using it altogether.
Phentermine is thought to decrease your appetite by increasing neurotransmitter levels in your brain. This equates to a weight loss of 10—20 pounds 4. In a meta-analysis of six studies, people who took the average dose of While phentermine has been shown to be effective for weight loss , it may work better when combined with topiramate Topiramate is a drug that has been used on its own to treat seizures but — like phentermine — also has appetite-reducing properties 11 , 12 , In users, this weight loss has translated to a significant decrease in waist circumference, improved insulin sensitivity , and blood sugar control, as well as favorable effects on triglyceride and cholesterol levels 16 , Studies confirm the effectiveness of phentermine for weight loss.
Prescription weight-loss medications may help you lose weight when they are combined with a weight-loss program that includes dietary and lifestyle changes.
While you are on this medication, the staff here at NuvidaRx carefully monitors your progress. We also support you with resources such as lipotropic injections fat-burning shots , hydration, and a daily exercise regimen.
ADIPEX is intended for short-term use in combination with physician-monitored exercise, lifestyle changes, and a reduced-calorie diet. I t suppresses your appetite by increasing the levels of neurotransmitters in your brain, such as norepinephrine, serotonin, and dopamine. When these levels increase, your feelings of hunger decrease.
This makes you feel hungry less often, which causes you to eat less and allows you to adhere to a low-calorie diet. This accelerates weight loss by reducing your urge to eat and increasing the amount of energy used by your body. Towns, C. Weight Changes Post-Phentermine Use. Nederlands tijdschrift voor geneeskunde, [online] Effects of a meal replacement system alone or in combination with phentermine on weight loss and food cravings.
Obesity, [online] 24 11 , pp. Identifying and validating blood mRNA biomarkers for acute and chronic insufficient sleep in humans: a machine learning approach. Sleep, [online] 42 1. The circadian regulation of food intake. Nature Reviews Endocrinology, [online] 15 7 , pp. Written by: Anna Milton, Health Writer.
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After 14 weeks of study, the drug treatment group lost In a study from UCLA, data on male and female phentermine users was collected. These dieters consumed a very low calorie diet of only to calories per day, and were given phentermine at doses ranging from 8 mg to 30 mg per day.
They were also told to exercise about 45 minutes a day, three times a week. After 12 weeks, the women had lost an average of In all three studies, the rate of weight loss was highest in the early months, then tapered off, which is a pattern common to almost all weight loss methods. This explains why the longest study, the British Medical Journal one, shows the lowest rate of loss. It wasn't that people actually lost more slowly in this study, but rather, that their weight loss significantly slowed after the first three or four months.
However, unlike the placebo users in the study, the phentermine users maintained their weight loss during the last three to four months.
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