What are phentermine capsules or tablets?
PHENTERMINE (Adipex-P®, Fastin®, Phentamine®, Zantryl®) helps you lose weight. Combined with a reduced calorie diet, it can help you reduce weight by decreasing your appetite. Generic phentermine is available.
What should my health care professional know before I take phentermine?
They need to know if you have any of these conditions:
-high blood pressure
-taken other medicines to lose weight in the past year
-an unusual or allergic reaction to phentermine, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
How should I take this medicine?
Take phentermine capsules or tablets by mouth. Follow the specific directions on the prescription label. Swallow the capsules or tablets with a drink of water at least 30 minutes before eating. Do not take your medicine more often than directed.
Contact your pediatrician or health care professional regarding the use of this medicine in children. Special care may be needed.
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
What drug(s) may interact with phentermine?
-medicines for blood pressure
-medicines for diabetes
-medicines for mental depression
-other medicines or herbal products for weight loss or to decrease appetite
Tell your prescriber or health care professional about all other medicines you are taking, including nonprescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.
What side effects may I notice from taking phentermine?
Side effects that you should report to your prescriber or health care professional as soon as possible:
-breathlessness on exertion -chest pain
-depression or severe changes in mood -dry cough
-heart palpitations -increased blood pressure
-severe dizziness -problems urinating
Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):
-a false sense of well being -blurred vision or other eye problems
-changes in sexual ability or desire -constipation
-diarrhea -difficulty sleeping
-dizziness -dry mouth
-nervousness or restlessness -nausea
-sweating -unpleasant taste
What should I watch for while taking phentermine?
Notify your physician immediately if you become short of breath while doing your normal activities.
Keep in mind that phentermine was intended to be used in addition to a healthy diet and exercise. The best results are achieved this way. While your prescriber or health care professional will most likely prescribe phentermine for only a few months; however, some people have used it for longer periods. Eventually your weight loss may "level out". At that point, the drug will only help you maintain your new weight. Do not increase or in any way change your dose without consulting your prescriber.
Do not drive, use machinery, or do anything that requires mental alertness or physical coordination until you know how phentermine affects you. Alcohol can increase the possibility of experiencing side effects with phentermine. Therefore, it is best to avoid alcoholic drinks.