Mayo Clinic Health Manager
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In order to prevent trouble in sleeping, if you are taking:
- More than one dose of this medicine a day, take the last dose of the day about 4 to 6 hours before bedtime.
For patients taking a long-acting form of this medicine:
- Swallow these capsules or tablets whole. Do not break, crush, or chew before swallowing.
For patients taking mazindol:
- This medicine may be taken with food, if needed, to prevent stomach upset.
Take this medicine only as directed by your doctor . Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. If too much is taken, it may cause unwanted effects or become habit-forming.
If you think this medicine is not working properly after you have taken it for a few weeks, do not increase the dose. Instead, check with your doctor.
Dosing
The dose medicines in this class will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of these medicines. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For benzphetamine
- For oral dosage form (tablets):
- For appetite suppression:
- Adults—At first, 25 to 50 milligrams (mg) once a day, taken in midmorning or midafternoon. Your doctor may need to adjust your dose.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For diethylpropion
- For oral dosage form (tablets):
- For appetite suppression:
- Adults—25 milligrams (mg) three times a day, taken one hour before meals.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For long-acting oral dosage form (extended-release tablets):
- For appetite suppression:
- Adults—75 mg once a day, taken in midmorning.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For mazindol
- For oral dosage form (tablets):
- For appetite suppression:
- Adults—At first, 1 milligram (mg) once a day. Your doctor may need to adjust your dose.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For phendimetrazine
- For long-acting oral dosage form (extended-release capsules):
- For appetite suppression:
- Adults—105 mg once a day, taken thirty to sixty minutes before the morning meal.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For long-acting oral dosage form (extended-release capsules):
- For appetite suppression:
- Adults—105 mg once a day, taken thirty to sixty minutes before the morning meal.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For oral dosage form (tablets):
- For appetite suppression:
- Adults—17.5 to 35 mg two or three times a day, taken one hour before meals.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For phentermine
- For oral dosage form (capsules):
- For appetite suppression:
- Adults—15 to 37.5 milligrams (mg) once a day, taken before breakfast or one to two hours after breakfast.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For oral dosage form (tablets):
- For appetite suppression:
- Adults—15 to 37.5 mg once a day, taken before breakfast or one to two hours after breakfast. Instead of taking it once a day, your doctor may tell you to take smaller doses thirty minutes before meals.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
- For oral resin dosage form (capsules):
- For appetite suppression:
- Adults—15 to 30 mg once a day, taken before breakfast.
- Children up to 16 years of age—Use is not recommended.
- For appetite suppression:
Missed Dose
If you miss a dose of this medicine, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Keep out of the reach of children.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Do not keep outdated medicine or medicine no longer needed.