Phentermine FAQs
Who is a Candidate for Phentermine?
Phentermine is generally prescribed for individuals who:
- Have a body mass index (BMI) of 30 or higher.
- Have a BMI of 27 or higher with other risk factors such as hypertension, diabetes, or dyslipidemia.
How is Phentermine Prescribed?
Phentermine is available in various forms, including tablets, capsules, and orally disintegrating tablets. The usual recommended dose is:
- Adipex-P: 37.5 mg once daily, taken before breakfast or 1-2 hours after breakfast.
- Lomaira: 8 mg three times a day, 30 minutes before meals.
How Long Can Phentermine be Used?
Phentermine is approved for short-term use, typically up to 12 weeks. Long-term use is not recommended due to the potential for dependence and other side effects.
What Are the Common Side Effects?
Common side effects include:
- Increased heart rate
- Dry mouth
- Sleeplessness
- Nervousness
- Constipation
What Are the Serious Side Effects?
Serious side effects, though rare, may include:
- Primary pulmonary hypertension
- Valvular heart disease
- Serious mental/mood changes
- Uncontrolled high blood pressure
Are There Any Contraindications?
Phentermine should not be prescribed to individuals who:
- Have a history of cardiovascular disease (e.g., coronary artery disease, stroke, arrhythmias)
- Have hyperthyroidism
- Have glaucoma
- Are pregnant or breastfeeding
- Have a history of drug abuse
- Are taking monoamine oxidase inhibitors (MAOIs) or have taken them within the last 14 days
How Should Patients Be Monitored?
Patients taking phentermine should be regularly monitored for:
- Blood pressure and heart rate
- Signs of side effects
- Weight loss progress
- Overall health and adherence to lifestyle changes
Can Phentermine Be Taken with Other Medications?
Phentermine may interact with other medications, including:
- Other weight loss drugs
- Antidepressants
- Antihypertensives
- Diabetes medications
Always check for potential drug interactions before prescribing phentermine.
What Lifestyle Changes Should Accompany Phentermine Use?
Phentermine should be part of a comprehensive weight loss plan that includes:
- A reduced-calorie diet
- Regular physical activity
- Behavioral therapy or counseling
What Should Be Done If a Dose is Missed?
If a dose is missed, patients should take it as soon as they remember. If it is close to the next dose, they should skip the missed dose and resume their regular schedule. Double dosing should be avoided.
What Should Be Done If a Dose is Missed?
If a dose is missed, patients should take it as soon as they remember. If it is close to the next dose, they should skip the missed dose and resume their regular schedule. Double dosing should be avoided.
Is There a Risk of Dependence?
Phentermine has the potential for abuse and dependence. It is classified as a Schedule IV controlled substance. Therefore, careful assessment and monitoring are required.
How Should Phentermine be Discontinued?
Phentermine should not be abruptly discontinued due to the risk of withdrawal symptoms. Gradual tapering may be necessary under medical supervision.
Conclusion
Phentermine can be an effective tool for weight loss when used appropriately. Proper patient selection, monitoring, and a comprehensive weight loss plan are essential to ensure safety and effectiveness. Always consult current clinical guidelines and consider individual patient factors when prescribing phentermine.