Phentermine
Cautions
Never exceed the recommended dose and never take phentermine for longer than
you are instructed without checking with your doctor. These both factors may
cause serious side effects. Do not forget to keep all doctor or laboratory
appointments while you are using phentermine. If you plan to begin taking any
new medicine after the phentermine, either prescription or over-the-counter,
you should definitely check with your doctor or pharmacist.
Avoid driving, operating machinery, or doing anything else that may be dangerous until you understand how you react to phentermine. Remember that if you are going to have any medical or dental treatments, emergency care, or surgery, tell the doctor or dentist that you are using phentermine.
Women should know that if they plan to become pregnant, they must discuss the benefits and risks of using phentermine during pregnancy with their doctor. The science has no conclusion if phentermine is excreted in breast milk, so avoid breast-feeding while taking this medicine.
Actually, as it had been already mentioned in "what you should know before using phentermine" section above, the presence of other medical problems may affect the use of phentermine. If you suffer from or have suffered from one or more of the problems listed below, please inform your doctor before start taking phentermine:
- Advanced atherosclerosis;
- Alcohol abuse - alcohol may increase unwanted side effects of dizziness; we recommend limiting alcohol use during the phentermine (or other diet pills) usage period;
- Allergies, or allergic reactions to phentermine, amphetamine, dextroamphetamine, ephedrine, epinephrine, isoproterenol, metaproterenol, methamphetamine, norepinephrine, phenylephrine, phenylpropanolamine, pseudoephedrine, terbutaline, other appetite suppressants, dyes, food, or preservatives;
- Diabetes (sugar diabetes) - it is possible that phentermine will affect blood sugar levels. If you are diabetic and notice a change in the results of your urine or blood sugar test or if you have any questions or concerns, please consult your doctor. In case of diabetes it may be necessary to change the amount of insulin or oral antidiabetic medicine that you take;
- Drug Abuse or Dependence - 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;
- Breast Feeding - use of phentermine (or other appetite suppressants) while breast-feeding is not recommended; it may pass into breast milk, causing unwanted effects in nursing babies. Please consult your doctor for advice;
- Pregnancy - phentermine has not been shown to cause birth defects in humans. Prior to taking this medication, tell your doctor if you are pregnant or attempting to become pregnant;
- Surgery, Dental Treatment, or Emergency Treatment - taking phentermine in conjunction with medicines that are used during surgery or dental or emergency treatments may cause serious side effects. Prior to surgery or treatment, please inform the doctor or dentist that you are using phentermine.
It is necessary to mention that phentermine may have unwanted side effects in the following cases as well:
- Driving and Hazardous Work - phentermine (or other diet pills) may cause some people to feel a false sense of well-being or to become dizzy, lightheaded, drowsy, or less alert than normal. Please avoid driving or engaging in hazardous work until you know how phentermine affects you.
- Infants and Children - phentermine (or other appetite suppressants) are not recommended for use by children under age 16. Studies on appetite suppressants have been done only in adult patients, and there is no specific information comparing use of phentermine in children with use in other age groups.