Phentermine Overview
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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
It is unlikely for an overdose of Phentermine to be life-threatening.
If you or someone you know takes a much larger dose than recommended, please phone a doctor, 911, or the nearest poison control 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 the kitchen sink, or in other damp places. Heat or moisture may cause the medicine to break down.
Do NOT keep outdated medicine past the expiration date. Discarded medicine should be kept out of children’s reach.
What to tell the Doctor PRIOR to talking Phentermine
The presence of other medical problems may affect the use of Phentermine (or other appetite suppressants). Please inform your doctor if you suffer from, or have suffered from:
Advanced Atherosclerosis
Alcohol Abuse (or history of)
Allergies – Inform 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 | other appetite suppressants | dyes |
| food | preservatives |
Diabetes Mellitus (sugar diabetes) – It may be necessary to change the amount of insulin or oral antidiabetic medicine that you take.
Drug Abuse or Dependence (or history of) – Dependence on Phentermine may be more likely to develop.
Family History of Mental Illness – Mental depression or other mental illness may be more likely to occur.
Glaucoma
Hyperthyroidism (over-active thyroid) – Phentermine may worsen the condition.
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