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PHENDIMETRAZINE (fen dye MET ra zeen) decreases your appetite. It is used with a reduced calorie diet and exercise to help you lose weight.
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take this medicine at least 1 hour before eating. Do not take your medicine more often than directed. Do not suddenly stop taking your medicine because you may develop a severe reaction. Your doctor will tell you how much medicine to take. If your doctor wants you to stop the medicine, the dose will be slowly lowered over time to avoid any side effects.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue)
changes in vision
chest pain or chest tightness
depressed mood or other mood changes
hallucinations, loss of contact with reality
fast, irregular heartbeat
increased blood pressure
nervousness or restlessness
signs and symptoms of a stroke like changes in vision; confusion; trouble speaking or understanding; severe headaches; sudden numbness or weakness of the face, arm or leg; trouble walking; dizziness; loss of balance or coordination
unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
constipation or diarrhea
Do not take this medicine with any of the following medications:
MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
medicines for colds or breathing difficulties like pseudoephedrine or phenylephrine
stimulant medicines for attention disorders, weight loss, or to stay awake
This medicine may also interact with the following medications:
certain medicines for depression, anxiety, or psychotic disturbances
medicines for diabetes
medicines for high blood pressure
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.
Keep out of the reach of children. This medicine can be abused. Keep your medicine in a safe place to protect it from theft. Do not share this medicine with anyone. Selling or giving away this medicine is dangerous and against the law.
This medicine may cause accidental overdose and death if taken by other adults, children, or pets. Mix any unused medicine with a substance like cat litter or coffee grounds. Then throw the medicine away in a sealed container like a sealed bag or a coffee can with a lid. Do not use the medicine after the expiration date.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F).
They need to know if you have any of these conditions:
agitation or nervousness
high blood pressure
history of drug abuse or addiction
lung disease called Primary Pulmonary Hypertension (PPH)
taken an MAOI like Carbex, Eldepryl, Marplan, Nardil, or Parnate in last 14 days
taking stimulant medicines for attention disorders, weight loss, or to stay awake
an unusual or allergic reaction to phendimetrazine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Notify your physician immediately if you become short of breath while doing your normal activities.
Do not take this medicine within 6 hours of bedtime. It can keep you from getting to sleep. Avoid drinks that contain caffeine and try to stick to a regular bedtime every night.
This medicine was intended to be used in addition to a healthy diet and exercise. The best results are achieved this way. This medicine is only indicated for short-term use. 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 doctor.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may increase dizziness and drowsiness. Avoid alcoholic drinks.