Proper Use of Phentermine

You should take Phentermine on an empty stomach, once daily, before breakfast.

If you use the drug in the form of tablets, you can break it or cut in half. Do NOT break, crush, or chew tablets.

Phentermine may disrupt normal sleep patterns. Therefore, it shouldn’t be taken late in the day. If you take more than one dose a day, you should take the last dose about 4-6 hours before going to bed.

Of course, the drug dosage may differ, depending on individuals. Any changes should be made under strict control of your doctor!

ADULTS UNDER AGE 60

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. You may be advised 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 AGE 60 AND OVER

A reduced dosage may be necessary. Therefore, you should consult your doctor.

INFANTS AND CHILDREN

Children under 16 are NOT allowed to take Phentermine

Maximum Dosage Recommendations

There are three things you should NOT do as far as dosage is concerned:

Do NOT take more of it

Do NOT take it more often, and

Do NOT take longer than your doctor told you to.

Remember that taking more phentermine than it’s necessary will not improve your problem and it may cause many others.

Missed dose

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.

In Case of Overdose

If you or someone you know takes a much larger dose than recommended, please phone a doctor, 911, or the nearest poison center immediately.

Storage:

  • Keep this and all medications out of children’s reach
  • Store away from heat and direct light
  • Do NOT store in the bathroom, near kitchen sink, or in other damp places. The medicine may be destroyed by heat and moisture.
  • Do NOT keep outdated medicine past the expiration date. When you throw the medicine out, make sure it’s out of children’s reach.

Before you take Phentermine: What should you inform your doctor about?

If you struggle with some illnesses or have problems with health, you should tell your doctor about them, since they may affect the use of Phentermine (as well as other appetite suppressants).

Please inform your doctor, if you suffer, or have suffered from:

  • Advanced Atherosclerosis
  • Alcohol Abuse (or history of)
  • Allergies- tell your doctor if you have ever had any unusual or allergic reaction to:

Phentermine amphetamine dextroamphetamine

Ephedrine epinephrine isoproterenol

Metaproterenol methamphetamine norepinephrine

Phenylephrine phenylpropanolamine pseudoephedrine

Terbutaline

Food, dyes, preservatives and other appetite suppressants.

  • Diabetes Mellitus (sugar diebetes)- It is possible that your doctor will advise you to change the amount of insulin or oral antidiabetic medicine that you take.
  • Drug Abuse or Dependence (or history of)- there’s a danger that you will get addicted to Phentermine.
  • Family History of Mental Illness- there’s a danger that mental depression or other mental illnesses may occur.
  • Glaucoma
  • Hyperthyroidism (over-active thyroid)- you may get worse while taking phentermine.
  • Kidney Disease- The chance of serious side effects may increase due to higher blood levels of Phentermine.
  • Mental Illness
  • Moderate to Severe Hypertension (high blood pressure)
  • Symptomatic Cardiovascular Disease
  • The use of a Monoamine Oxidase (MAO) inhibitor within the last 2 weeks