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Phentermine is a prescription only appetite suppressant. It’s important that it’s only taken by those prescribed for it and are under physicians supervision.

How and When to Take Phentermine

When taking phentermine, you should do so correctly. Each day, you take it once on a completely empty stomach right before breakfast. If it is in tablet form, you may break or cut it in half, however do not crush or chew it.

Because phentermine may disturb normal sleeping patterns, it is recommended that you avoid taking it later in the day. If you are prescribed more than one dose per day, take the last dose 4 to 6 hours before your normal bedtime.

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 approx. 4-6 hours prior to going to bed.

Do not change your dosage of phentermine unless your doctor tells you to do so. Typical dosages for adults under the age of 60 look like this:
– Oral dosage form (Capsules) – 15 to 37.5 mg once/day before breakfast or 1-2 hours after breakfast.
– Oral dosage form (Tablets) – 15 to 37.5 mg once/day before breakfast or 1-2 hours after breakfast. Instead of taking it once a day, your doctor may tell you to take 15 to 37.5 mg in divided doses one-half hour before meals.
– Oral resin dosage form (Capsules) – 15 to 30 mg once/day before breakfast.

Adults over the age of 60 may need to take a reduced dosage if approved for the medication. Consult your doctor prior to taking or adjusting any phentermine prescription. Phentermine is not recommended for anyone under the age of 18.

If you do not think phentermine is working properly for you, discuss it with your doctor after several weeks. Do not attempt to increase the dosage yourself. You can safely enhance the effects of phentermine while taking it or after the course of your prescription by taking recommended Phen Caps as a supplement.

Missed Doses

You should always take your dosage of phentermine on time. However, if you miss a dose, you should take it as soon as possible. Unless it’s almost time for your next dose, then you should skip the missed dose and only take the scheduled dose. Do not ever double the dose.

Is it Possible to Overdose on Phentermine?

An overdose of phentermine is unlikely to be life-threatening, however if you or someone you know takes a much larger dosage than is recommended, call your doctor, poison control, or 911 immediately.

Phentermine should only be taken as directed by your doctor. Do not take more of it than prescribed, do not take it more often, and do not take it for a longer period of time than your doctor has ordered. Doing so will cause unwanted side effects and can be habit-forming.

Do not share Phentermine with those without Rx

Phentermine is a prescription appetite suppressant. For this reason, you must not share it with others that do not have a prescription. Because of the potential drug interactions as well as effects phentermine can pose on those with certain medical conditions, sharing this prescription can be extremely dangerous.


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