The most common instruction is to take one pill on an empty stomach right after you wake-up.
In tablet form, phentermine may be broken or cut in half. Do NOT break, crush, or chew capsules.
As phentermine may disrupt normal sleep patterns, avoid taking a dose late in the day. If taking more than one dose a day, take the last dose approximately 4-6 hours prior to going to bed.
The following information is specific only to the average doses of phentermine. The recommended dose of phentermine may be different for different patients. If your dose is different, do NOT change it unless your doctor tells you to do so.
A reduced dosage may be necessary. Consult with your physician.
Phentermine is NOT recommended for children under age sixteen.
Regardless of your prescribed doese, alwaystake phentermine ONLY as directed by your doctor.
Taking too much phentermine may cause unwanted effects or become habit-forming.
Speak with your doctor if you think that phentermine is not working properly after you have taken it for a few weeks. DO NOT increase the dose.
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If you miss a dose, take it as soon as possible.
However, if it is almost time for the next dose, skip the missed dose and take only the scheduled dose. Do NOT double the dose.
If you or someone you know overdoses on phentermine, call your doctor or local poison control center right away.
If you experience any of these symptoms of phentermine overdose, call 911 or seek immediate medical attention:
A major overdose of phentermine can be fatal.
Do NOT share your phentermine prescription with others.