Weight Wise proudly provides Phentermine as a trusted medical weight loss solution in Jacksonville, FL.
Our team supports you at every stage of your journey to ensure the best results. From your initial consultation to your first appointment and monthly check-ins, we are committed to helping you achieve lasting weight loss.
For those unable to visit in person, we extend our Telehealth services across Florida. Schedule a convenient time, and our weight loss specialists will assess whether Phentermine is the right choice for you.
Where do you want to be? Choose Weight Wise!
See What Our Florida Patients Are Saying

What is Phentermine?
Phentermine, also known as Adipex P or Lomaira, is a prescription medication designed to reduce appetite. It belongs to a class of drugs called norepinephrine-reuptake inhibitors and helps with weight loss by decreasing hunger signals.
Phentermine is most effective when incorporated into a comprehensive weight-loss plan that includes proper nutrition, regular exercise, and lifestyle changes.
If you struggle with obesity, metabolic syndrome, or high cholesterol and have difficulty losing weight through diet and exercise alone, Phentermine may be a suitable option. Consult a healthcare provider to determine if it’s right for you.
How Does Phentermine Work?
Phentermine is classified as an anorectic, meaning it suppresses appetite to assist with weight loss.
This medication increases the levels of neurotransmitters like norepinephrine, dopamine, and serotonin, making you feel fuller and reducing the urge to eat.
It’s important to note that Phentermine does not burn fat or speed up metabolism—its primary function is to help you consume fewer calories, making weight loss easier.

Achieve Your Weight Loss Goals With Phentermine
As part of a supervised course of treatment, phentermine can effectively support weight loss, with most results occurring in the early stages of the treatment. However, phentermine is not suitable for everyone. Individuals with a history of stroke, heart attack, or uncontrolled high blood pressure, as well as those who are pregnant or breastfeeding, should not take this medication.
The most commonly reported side effects include dry mouth, constipation, and trouble sleeping. These symptoms typically subside over time. At Weight Wise, we closely monitor your progress and adjust medications as needed to ensure your comfort and success. Most individuals tolerate phentermine well with minimal or no side effects.
At Weight Wise, we carefully evaluate the best course of action to help you achieve your weight loss goals and monitor your health to ensure the best possible results. Call us today for a free consultation—we are ready to help you get started!
FAQ's About Phentermine
How To Use Phentermine
Phentermine 37.5mg is typically taken once a day, one hour before breakfast.
It is essential to follow your doctor’s instructions carefully. Taking phentermine late in the day may cause difficulty sleeping.
If using a slow-release capsule, take it once a day before breakfast or at least 10-14 hours before bedtime. Swallow the capsule whole without crushing or chewing it, as doing so may release the medication too quickly and increase the risk of side effects.
Stopping phentermine suddenly can lead to withdrawal symptoms such as depression or extreme fatigue. To avoid this, your doctor may gradually reduce your dose. The risk of withdrawal is higher if you have taken phentermine for a long time or in high doses. If withdrawal symptoms occur, consult your doctor or pharmacist immediately.
Phentermine has the potential for addiction, particularly in individuals with a history of substance abuse. Do not take more than prescribed, take it more frequently, or extend the duration of use without medical supervision. Always follow your doctor’s guidance when discontinuing this medication.
How Much Weight Can You Lose With Phentermine?
Phentermine is FDA-approved for short-term weight loss, typically less than 12 weeks, though some doctors prescribe it off-label for extended use. Over three months, phentermine may result in an average weight loss of 3% of initial body weight, increasing to 5-7% after six months. Individual results depend on factors such as diet and exercise.
Its effectiveness may decline after prolonged use of over a year due to tolerance. Combining phentermine with topiramate, a seizure medication with appetite-suppressing properties, may enhance weight loss.
The combination of phentermine and topiramate is marketed as Qsymia, which was FDA-approved in 2012 for use alongside lifestyle changes, including exercise and a calorie-reduced diet.
Qsymia has been shown to be the most effective among several commonly prescribed weight loss medications, with an average weight loss of 17.8 pounds when taken for more than 56 weeks.
In addition to weight loss, this medication can improve insulin sensitivity, blood sugar levels, and blood pressure.
What Are The Side Effects Of Phentermine?
Common side effects of phentermine and phentermine-topiramate include:
- Dry mouth
- Sleep disturbances
- Dizziness
- Heart palpitations
- Skin flushing
- Fatigue
- Constipation
- Irritability
- Nausea
- Vomiting
Severe but rare side effects may also occur, including elevated blood pressure, suicidal thoughts, metabolic acidosis, increased creatinine levels, fetal harm, vision disturbances, cognitive impairment, and low potassium levels.
Phentermine is not recommended for individuals with heart disease, hyperthyroidism, glaucoma, severe kidney or liver disease, or for those who are pregnant or nursing.
It should not be combined with monoamine oxidase inhibitors (MAOIs) or certain other medications. A healthcare provider will assess whether phentermine is a suitable and safe option.