
Phentermine is a prescription medication used for short-term weight loss in overweight or obese adults who are also following a reduced-calorie diet and exercise plan.
How it works:
- Phentermine is an appetite suppressant (anorectic) that belongs to the stimulant class of medications.
- It’s believed to work by affecting neurotransmitters in the brain, potentially increasing levels of norepinephrine, serotonin, and dopamine, which can reduce appetite and increase feelings of fullness.
Key facts:
- Indication: It is typically prescribed for individuals with a BMI of 30 or higher, or those with a BMI of 27 or higher who have weight-related health problems like high blood pressure, high cholesterol, or diabetes.
- Short-term use: Phentermine is generally recommended for short-term use, typically for a few weeks, due to potential risks and side effects associated with longer-term use.
- Dosage: It’s available in various forms (tablets, capsules, orally disintegrating tablets) and dosages, and your doctor will determine the appropriate dose and form for you.
- Potential benefits: In combination with lifestyle changes, phentermine can help individuals lose a significant amount of weight, typically around 3% of their initial body weight after 3 months and 5-7% after 6 months.
- Potential side effects: Some common side effects include dry mouth, insomnia, constipation, nervousness, and increased heart rate.
- Precautions and warnings: It’s essential to discuss your medical history with your doctor, as phentermine may not be suitable for everyone, particularly those with heart conditions, uncontrolled high blood pressure, glaucoma, or a history of drug abuse.
- Drug interactions: Phentermine can interact with other medications, including certain antidepressants, MAO inhibitors, and other stimulant medications, so it’s vital to inform your doctor about all medications you’re taking.
- Pregnancy and breastfeeding: It is generally contraindicated during pregnancy and breastfeeding due to potential risks to the fetus or infant.
Important note: Phentermine should always be used under the guidance of a healthcare professional. It is crucial to follow your doctor’s instructions regarding dosage and duration of treatment and to report any side effects or concerns.
