Phentermine has a rapid onset of action and can significantly reduce the appetite of patients. In the short term, it can help patients achieve obvious weight loss. For patients who have a strong desire to eat and have difficulty controlling their diet, phentermine can play a good role in suppressing appetite and helping them establish good eating habits.

However, due to its stimulant effect on the central nervous system, phentermine also has some side effects. Common side effects include increased blood pressure, increased heart rate, insomnia, and restlessness. Therefore, it is not suitable for patients with cardiovascular diseases, hypertension, and mental disorders. Before using phentermine, a comprehensive physical examination and evaluation by a doctor are required.

In addition, long-term use of phentermine may lead to drug dependence, so its use is usually limited to a short period. In recent years, with the development of new obesity treatment drugs, the use of phentermine has been relatively reduced, but it is still an option in some specific patient populations.

When using phentermine, it is necessary to follow the doctor's advice and pay attention to monitoring blood pressure, heart rate and other indicators. At the same time, combined with a reasonable diet and exercise, better weight loss results can be achieved.