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PHENELZINE (FEN el zeen) is a monoamine oxidase inhibitor (MAOI). It is used to treat depression in patients who may also have anxiety. This medicine is usually only used when other medicines have not helped.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
They need to know if you have any of these conditions:
frequently drink alcohol-containing beverages
headaches or migraine
high blood pressure
history of irregular heartbeat
history of stroke
recent head trauma
suicidal thoughts, plans, or attempt; a previous suicide attempt by you or a family member
an unusual or allergic reaction to phenelzine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take your medicine at regular intervals. Do not take your medicine more often than directed. Do not stop taking this medicine suddenly except upon the advice of your doctor. Stopping this medicine too quickly may cause serious side effects or your condition may worsen.
A special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
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.
Do not take this medicine with any of the following medications:
certain medicines for blood pressure like clonidine, guanabenz, guanadrel, guanethidine, or reserpine
diet pills or stimulants, like amphetamines or ephedra
general or local anesthetics
MAOIs like Azilect, Carbex, Eldepryl, Nardil, and Parnate
medicines for migraine headaches
medicines for movement abnormalities as in Parkinson's disease like entacapone, levodopa, selegiline, tolcapone
other medicines for mental depression, anxiety, or mood or mental problems
St. John's wort
tyramine (found in cheese, red wine, beer, chocolate and other foods)
This medicine may also interact with the following medications:
medicines for high blood pressure
prescription pain medicines
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
Tell your doctor if your symptoms do not get better or if they get worse. Visit your doctor or health care professional for regular checks on your progress. Because it may take several weeks to see the full effects of this medicine, it is important to continue your treatment as prescribed by your doctor.
This medicine can interact with certain foods that contain tyramine. The combination may cause severe headaches, a rise in blood pressure, or irregular heart beat. Foods that contain significant amounts of tyramine include aged cheeses, meats and fish (especially aged, smoked, pickled, or processed such as bologna, pepperoni, salami, summer sausage), beer and ale, alcohol-free beer, wine (especially red), sherry, hard liquor, liqueurs, avocados, bananas, figs, raisins, soy sauce, miso soup, yeast/protein extracts, bean curd, fava or broad bean pods, or any over-ripe fruit. Ask your doctor or health care professional, pharmacist, or nutritionist for a complete listing of tyramine-containing foods. Also, avoid drinks containing caffeine, such as tea, coffee, chocolate, or cola. After stopping this medicine, ask your health care professional how long you should continue avoiding these foods and drinks.
Patients and their families should watch out for new or worsening thoughts of suicide or depression. Also watch out for sudden changes in feelings such as feeling anxious, agitated, panicky, irritable, hostile, aggressive, impulsive, severely restless, overly excited and hyperactive, or not being able to sleep. If this happens, especially at the beginning of treatment or after a change in dose, call your health care professional.
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 interfere with the effect of this medicine. Avoid alcoholic drinks.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
Do not treat yourself for coughs, colds, or allergies without asking your doctor or health care professional for advice. Do not take any medications for weight loss without your doctor's approval. Some ingredients in these products may increase possible side effects.
This medicine may affect blood sugar levels. If you have diabetes, check with your doctor or health care professional before you change your diet or the dose of your diabetic medicine.
Tell your health care professional that you are taking this medicine if you are scheduled to have any surgery, procedure or medical testing. You should usually stop taking this drug at least 10 days before elective surgery.
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
confused, excitable, restless, or nervous
enlarged pupils, sensitivity of the eyes to light
fast, irregular, or slow heartbeat
feeling faint or lightheaded, falls
fever, clammy skin, increased sweating, sore throat
muscle or neck stiffness or spasm
suicidal thoughts or other mood changes
trouble passing urine or change in the amount of urine
yellowing of the eyes or skin
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
change in appetite or weight
change in sex drive or performance
constipation or diarrhea
increased sensitivity to sunlight
muscle aches or pains, trembling
nausea or vomiting
swelling of the feet or legs
weak or tired
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.
Bayhealth is Southern Delaware’s healthcare leader with hospitals in Dover and in Milford. Bayhealth provides a wide range of medical services, including cardiovascular, cancer, orthopaedics and rehabilitation, pediatrics, respiratory care, sleep care, surgical weight loss and women’s services.