Health & Fitness

Phentermine for weight loss

November 8, 2021

Phentermine (Adipex-P, Lomaira) is an amphetamine-like prescription appetite suppressant. It may aid in weight reduction by lowering appetite or making you feel fuller for longer. For weight reduction, phentermine is also available in conjunction with topiramate (Qsymia).

Phentermine, like other prescription weight-loss medications, is meant to be taken as part of a comprehensive weight-loss regimen. It is recommended for those who are obese and have not lost enough weight with diet and exercise alone – not for people who wish to shed a few pounds. Check out no prescription phentermine alternatives to lose weight fast!

Phentermine is a common appetite suppressant that aids in weight reduction. There is no medicine that can substitute a healthy diet and exercise. Drugs, such as phentermine, may, nevertheless, assist people who are unable to lose weight with diet and exercise alone.

Phentermine may help some individuals lose weight, but the outcomes vary from person to person. It is determined by their response, the length of time they utilize it, and their weight reduction activities.

Some individuals should not use phentermine to lose weight. The hazards exceed the possible advantages for them.

In this post, we will look at what the most recent research says about phentermine, if it aids in weight reduction, suggested doses, and how to take it.

Is it effective?

In many circumstances, phentermine aids in weight loss. It has been one of the most popular prescription weight reduction medications since its approval in 1959, either alone or as part of a combo treatment.

The precise method by which phentermine suppresses appetite is unknown. According to the researchers, the medicine raises neurotransmitter levels in the brain, which reduces appetite.

Weight reduction outcomes may also be affected by a person’s overall dietary and lifestyle modifications. Regular exercise, calorie restriction, and a nutritious diet are all part of it.

According to the findings of this study, those who changed one meal each day to minimize their calorie intake lost weight. Those who used phentermine in their regimen dropped more weight and had less cravings.

When and how to apply

Phentermine is prescribed to persons who are obese or who are unable to reduce weight by a healthy diet and exercise alone. They must have a BMI more than 30, or a BMI greater than 27 if they have a weight-related condition. Importantly, in order for the medicine to operate well, a person must still undertake dietary and lifestyle adjustments to assist their weight reduction.

Phentermine is not recommended for persons who want to drop a few pounds or who are otherwise healthy.

Doctors will modify each dosage so that the patient receives the least quantity of medication that is effective.

Phentermine is also a short-term medication. Although some studies show that phentermine is safe in long-term usage, it is still only recommended for a few weeks.


Phentermine has risks, which a doctor will consider before prescribing the medicine for weight reduction.

Adverse consequences

Phentermine, either alone or in conjunction with other medicines such as topiramate, may have its own set of adverse effects

Shortness of breath due to swelling in the legs and ankles

These medicines may also impair one’s ability to drive or operate heavy equipment in certain situations. Doctors advise individuals to take time off work when they first start taking the medicine to assess any negative effects.

Other medical conditions or drugs

Because of a person’s medical problems or prescriptions, phentermine may be ineffective as a weight reduction medication for them. These are some examples:

Hyperthyroidism, glaucoma, a history of cardiovascular disease, and a history of drug addiction with antidepressants such as monoamine oxidase inhibitors or selective serotonin reuptake inhibitors are all possibilities.

Women who are pregnant or nursing should avoid phentermine until they are no longer lactating.

People using phentermine who have diabetes or hypoglycemia will be monitored by doctors. When using the medicine, individuals may need to lower their insulin or other prescriptions.

Phentermine may also interact with alcohol, thus those taking it should attempt to avoid alcoholic beverages.

Abuse potential and tolerance

Phentermine has a chemical similarity to amphetamine substances such as methamphetamine, a stimulant with a history of misuse. As a result, when someone uses phentermine, there is a risk of misuse and dependency.

Some individuals may develop accustomed to the medication and want more of it in order to experience the same effects. In these circumstances, it is critical to cease phentermine and switch to alternative weight-loss treatments.

People who consume high amounts of a medicine may develop withdrawal symptoms after they stop using it. In each situation, consult with a doctor about the danger of withdrawal.

Forms and dosage suggestions

Phentermine, or a medication containing a combination of phentermine and additional medicines, is commonly administered in the form of an oral capsule. Doctors may adjust the dosage to ensure that the patient receives the smallest effective dose.

Adults’ typical phentermine dosages are 15 milligrams (mg), 30 mg, or 37.5 mg, which give 12 mg, 24 mg, or 30 mg of phentermine, respectively.

A phentermine and topiramate daily dosage may range from 3.75 mg phentermine and 23 mg topiramate to 15 mg phentermine and 92 mg topiramate.

Some underlying disorders may alter dose recommendations as well. People with damaged kidneys may need lower dosages to prevent putting extra strain on these systems. Others with advanced renal disease may be unable to take the medication.

Doctors do not suggest phentermine for elderly persons since it might cause renal damage. Due to the unknown hazards, children under the age of 16 should avoid the medicine as well.

It is also not recommended to take the medication in the evening or at night, since this may result in sleeplessness.

The cost of phentermine will vary depending on the type and dose. In rare circumstances, health insurance may also assist pay expenses.


Phentermine is an FDA-approved weight reduction medication that is still widely used owing to its efficacy. A person who takes it alone or in combination with other medications may be able to lose weight more quickly.

Phentermine is used to treat obesity in those who are unable to reduce weight with diet and exercise alone. There are still dangers associated with phentermine and comparable medicines. Anyone who intends to use them should consult with their doctor to explore their alternatives.

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