Phentermine Dosing Information

Usual Adult Phentermine Dose for Weight Loss:
Initial dose: 8 mg orally 3 times a day 30 minutes before meals.
Alternatively, phentermine hydrochloride and phentermine resin may be given as a single dose of 15-37.5 mg orally once a day before breakfast or 10-14 hours before retiring.
Usual Pediatric Phentermine Dose for Weight Loss:
Child > 12 years:
Initial dose: 8 mg orally 3 times a day 30 minutes before meals.
Alternatively, phentermine hydrochloride and phentermine resin may be given as a single dose of 15-37.5 mg orally once a day before breakfast or 10-14 hours before retiring.