Why does phentermine work




















In these cases, medical intervention in the form of diet pills can really help a patient lose weight. Diet pills have gained themselves a notorious reputation. Advertised as nothing short of miraculous, many diet pills have been cataloged as dangerous and something to be avoided. The truth, however, is that used as an addition to a healthy eating plan and an exercise regimen, diet pills can be very safe and effective.

So why is it that when it comes to losing weight, something that has proven to help reduce the risk of diabetes, high blood pressure, and cardiovascular diseases, we deny our bodies from the help of medication? Phentermine is one of the most commonly prescribed weight-loss drugs in the world today and it works. Phentermine, whose chemical name is phenyl-tertiary-butylamine, is a Schedule — IV prescription drug that is used in conjunction with diet and exercise for the treatment of obesity.

It is a controlled substance and can only be issued on a prescription because of its similarities to amphetamine. This drug was approved in the United States for medical use in and has become one of the most popular drugs for weight loss across the world.

Today, phentermine is available under the brand names Lomaira, Adipex-P, Suprenza, etc. Phentermine has also been combined with other weight loss drugs since the s, of which the most commonly used is Qsymia.

Phentermine is an anorectic drug, which means it is an appetite suppressant. The drug stimulates the release of chemicals, or neurotransmitters, in the brain. The neurotransmitters whose levels are increased by this drug are norepinephrine, dopamine and serotonin.

With the increase in the levels of these chemicals in your brain, you feel full and therefore eat less. Over time, this can lead to weight loss, especially if accompanied by a proper diet and exercise. There have been several clinical studies conducted that have proved that phentermine helps in weight loss, and indirectly, the reduction of blood pressure and blood sugar the reduction in A1C as well as a reduction in mortality related to cardiovascular diseases.

The control of weight related diseases is shown to be a direct result of weight loss, rather than the effect of the phentermine. Due to weight loss, risk factors to health also go down, such as an improvement in insulin sensitivity, and the reduction of inflammation and blood pressure. Lipid profiles also show improvement, especially in triglycerides as well as HDL cholesterol. While blood pressure is reduced due to the effects of weight loss, the heart rate of a person on phentermine may go up.

Phentermine is taken orally and is usually prescribed for up to 12 weeks at a time to promote weight loss. At Rivas Medical Weight Loss we will treat you for a longer period of time. Until , phentermine was only available in 3 doses of extended-release capsules — 15mg, 30mg, and Losing weight can be extremely beneficial to health, helping to decrease the risks of heart disease, diabetes and high blood pressure.

By activating the sympathetic nervous system, phentermine helps decrease or suppress appetite, limiting your caloric intake to help reduce overall weight gain. The drug may also help increase energy exertion of the body and help activate certain areas in the brain that affect appetite and weight gain. Always be sure to first consult your healthcare provider before starting any new prescription medication.

Under the guidance of your health care provider, make sure to follow the directions on the prescription label and as per the recommendations of your doctor. Phentermine is available in tablets and extended-release capsules. It is typically taken by mouth once a day, 1 hour before your first meal or 1 to 2 hours after your first meal. The extended-release capsules are normally taken once a day before breakfast or 10 to 14 hours before bedtime.

Make sure to swallow the medication whole rather than crushing, or chewing the tablets. Be sure to carefully follow the instructions of your doctor and aim to take the medication the same time everyday. Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below. A single copy of these materials may be reprinted for noncommercial personal use only.

This site complies with the HONcode standard for trustworthy health information: verify here. This content does not have an English version. This content does not have an Arabic version. See more conditions. Request Appointment. Healthy Lifestyle Weight loss. Products and services. Is phentermine a good option for weight loss? 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.

The combination of phentermine and topiramate may help reduce binge eating in people with binge eating disorder BED and bulimia nervosa.

BED is characterized by eating large amounts of food, often quickly and to the point of discomfort. Bulimia nervosa involves the same binge-eating behavior as with BED, but includes behaviors, such as self-induced vomiting, in an attempt to compensate for the effects of binge eating In a small week study in obese or overweight people with BED, the phentermine and topiramate drug combination was associated with significant reductions in weight, BMI, and binge-eating episode frequency In another week study, people with BED or bulimia nervosa were randomized to receive the drug combination or a placebo.

The same results were not observed in the placebo group



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