
Exogenous Obesity: Dosage should be individualized to obtain an adequate response with the lowest effective dose.
The usual adult dose is one tablet (37.5 mg) daily, administered before breakfast or 1 – 2 hours after breakfast. The dosage may be adjusted to the patient's need. For some patients 1/2 tablet (18.75 mg) daily may be adequate, while in some cases it may be desirable to give 1/2 tablet (18.75 mg) two times a day.
Late evening medication should be avoided because of the possibility of resulting insomnia.
Phentermine is not recommended for use in patients sixteen (16) years of age and under.