Nardil

Name: Nardil

How should this medicine be used?

Phenelzine comes as a tablet to take by mouth. It is usually taken three times a day,. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take phenelzine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Your doctor will probably start you on a low dose of phenelzine and gradually increase your dose. After your symptoms have improved, your doctor will probably gradually decrease your dose. Follow these directions carefully.

Phenelzine controls the symptoms of depression but does not cure the condition. It may take 4 weeks or longer for you to feel the full benefit of phenelzine. Continue to take phenelzine even if you feel well. Do not stop taking phenelzine without talking to your doctor. Your doctor probably will want to decrease your dose gradually. If you suddenly stop taking phenelzine, you may experience withdrawal symptoms such as nightmares, agitation, loss of contact with reality, nausea, vomiting, and weakness.

Phenelzine Side Effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any new or worsening symptoms such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.

Stop using phenelzine and call your doctor at once if you have any of these serious side effects:

  • sudden and severe headache, rapid heartbeat, stiffness in your neck, nausea, vomiting, cold sweat, sweating, vision problems, sensitivity to light;
  • chest pain, fast or slow heart rate;
  • swelling, rapid weight gain;
  • agitation, unusual thoughts or behavior; or
  • feeling light-headed, fainting.

Less serious side effects may include:

  • dizziness;
  • feeling weak or drowsy;
  • sleep problems (insomnia);
  • constipation, upset stomach;
  • dry mouth, decreased urination; or
  • impotence, difficulty having an orgasm.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

Phenelzine Interactions

While you are taking phenelzine you must not eat foods that are high in tyramine, including:

  • aged or smoked meats, fermented meats, dry sausage (including salami, pepperoni, Lebanon bologna), liver, pickled herring;
  • any spoiled or improperly stored meats, fish, or dairy products;
  • beer and wine (including non-alcoholic beer or wine);
  • cheese (other than cottage cheese or cream cheese);
  • sauerkraut;
  • over-the-counter supplements or cough and cold medicines that contain dextromethorphan or tyramine;
  • large amounts of chocolate or caffeine;
  • yogurt;
  • fava beans;
  • meat extracts; or
  • yeast extracts (including Brewer's yeast).

You should become very familiar with the list of foods and medicines you must avoid while you are taking phenelzine. Eating tyramine while you are taking phenelzine can raise your blood pressure to dangerous levels which could cause life-threatening side effects.

Phenelzine may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

There are many other medicines that can cause serious or life-threatening medical problems if you take them together with phenelzine. Do not take phenelzine before telling your doctor about all other prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor, dentist, or other healthcare provider who treats you.

Nardil Overview

Nardil is a prescription medication used to treat depression. Because of its potentially serious side effects, it is often used only after other antidepressants haven't worked. Nardil belongs to a group of drugs called monoamine oxidase (MAO) inhibitors. It works by increasing the levels of certain natural chemicals in the brain that affect your mood and help maintain mental balance.

Nardil comes in tablet form. It is usually taken 3 times daily, with or without food.

Common side effects include dizziness, headache, and insomnia. Nardil can cause drowsiness. Do not drive or operate heavy machinery until you know how it affects you.

Uses of Nardil

Nardil is a prescription medication used to treat depression, when other medications have failed.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Nardil Dosage

Take Nardil exactly as prescribed by your doctor. Follow the directions on your prescription label carefully.

The Nardil dose your doctor recommends will be based on the following:

  • other medical conditions you have
  • other medications you are taking
  • how you respond to this medication 

The usual starting dose of Nardil is one tablet (15 mg) three times a day.

Dosage should be increased to at least 60 mg per day. After maximum benefit from Nardil is achieved, dosage should be reduced slowly over several weeks. Maintenance dose may be as low as one tablet, 15 mg, a day or every other day, and should be continued for as long as is required.

 

What should I avoid while taking Nardil (phenelzine)?

While you are taking phenelzine you must not eat foods that are high in tyramine, including:

  • aged or smoked meats, fermented meats, dry sausage (including salami, pepperoni, Lebanon bologna), liver, pickled herring;

  • any spoiled or improperly stored meats, fish, or dairy products;

  • beer and wine (including non-alcoholic beer or wine);

  • cheese (other than cottage cheese or cream cheese);

  • sauerkraut;

  • over-the-counter supplements or cough and cold medicines that contain dextromethorphan or tyramine;

  • large amounts of chocolate or caffeine;

  • yogurt;

  • fava beans;

  • meat extracts; or

  • yeast extracts (including Brewer's yeast).

You should become very familiar with the list of foods and medicines you must avoid while you are taking phenelzine. Eating tyramine while you are taking phenelzine can raise your blood pressure to dangerous levels which could cause life-threatening side effects.

Phenelzine may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

Nardil (phenelzine) side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any new or worsening symptoms such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.

Stop using phenelzine and call your doctor at once if you have any of these serious side effects:

  • sudden and severe headache, rapid heartbeat, stiffness in your neck, nausea, vomiting, cold sweat, sweating, vision problems, sensitivity to light;

  • chest pain, fast or slow heart rate;

  • swelling, rapid weight gain;

  • agitation, unusual thoughts or behavior; or

  • feeling light-headed, fainting.

Less serious side effects may include:

  • dizziness;

  • feeling weak or drowsy;

  • sleep problems (insomnia);

  • constipation, upset stomach;

  • dry mouth, decreased urination; or

  • impotence, difficulty having an orgasm.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

Interactions for Nardil

Drugs Associated with Serotonin Syndrome

Potential pharmacologic interaction (serotonin syndrome) with serotonergic agents.100 b j k Avoid concomitant administration of phenelzine and serotonergic agents and allow sufficient amount of time to elapse between discontinuance of serotonergic drugs and initiation of phenelzine.100 b e (See Specific Drugs and Foods under Interactions.)

Specific Drugs and Foods

Drug or Food

Interaction

Comments

Alcohol

May potentiate action of alcoholb

Possible hypertensive crisis with tyramine-containing alcoholic beverages (e.g., Chianti wine, beer, liqueurs)100 b o

Avoid alcoholic beverages during therapy and for 2 weeks following phenelzine discontinuance100

Anesthetics

General anesthetics: Possible exaggeration of hypotensive and CNS depressant effects100 b

Local anesthesia with cocaine or local anesthetics that contain sympathomimetic vasoconstrictors: Possible hypertension100 b

Spinal anesthesia: Possible potentiation of the hypotensive effect of local anesthetics100 b

For elective surgery, discontinue phenelzine for ≥10 days prior to elective surgery with general anesthetics; for emergency surgery, carefully adjust dosage of general anesthetics100 b

Local anesthesia with cocaine or local anesthetics that contain sympathomimetic vasoconstrictors: Avoid concomitant use100 b

Spinal anesthesia: Use with caution100 b

Antidepressants, SNRIs (e.g., duloxetine, venlafaxine)

Potentially life-threatening serotonin syndrome100 j k l

Concomitant use contraindicated100 j k

Allow at least 5 or 7 days to elapse between discontinuance of duloxetine or venlafaxine, respectively, and initiation of phenelzine and at least 2 weeks between discontinuance of phenelzine and initiation of duloxetine or venlafaxine100 j k

Antidepressants, SSRIs (e.g., citalopram, escitalopram, fluoxetine, fluvoxamine, paroxetine, sertraline)

Potentially life-threatening serotonin syndrome or neuroleptic malignant syndrome (NMS)100 b e m n

Concomitant use contraindicated100 b

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of an SSRI, and vice versa100 b

Allow at least 5 weeks to elapse between discontinuance of fluoxetine and initiation of phenelzine100 b

Antidepressants, tricyclic (TCAs) (e.g., amitriptyline, desipramine, imipramine, nortriptyline, protriptyline)

Potentially life-threatening serotonin syndrome 100 b

Concomitant use contraindicated 100 b

Allow at least 2 weeks to elapse when switching to or from these drugs100 b

Antidiabetic agents, oral

Possible hypoglycemic episodes100 b

Use with caution; oral antidiabetic agent requirements may decrease during concurrent administration100 b

Barbiturates

Potentiated hypnotic effects reported in animals; may potentiate action of barbiturates in humans100 b

Reduce barbiturate dosage during concomitant administration100

Bupropion

Possible enhanced toxicity of bupropionb

Concomitant administration contraindicated

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of bupropion100 b

Buspirone

Elevated BP reported with concomitant use; possible serotonin syndrome100 b

Concomitant use contraindicated100

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of buspirone100

Caffeine

May precipitate hypertensive crisis if taken in excessive quantities100 b

Concomitant use of excessive quantities of caffeine contraindicated100 b

Carbamazepine

Possible serotonin syndrome100

Concomitant use contraindicated100

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of carbamazepine100

CNS depressants (e.g., opiate analgesics)

May potentiate the action of CNS depressantsb

Concomitant use contraindicated100 b

Cyclobenzaprine

Possible hypertensive crises or severe seizures;100 q serotonin syndrome reportedr

Concomitant use contraindicated100 q

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of cyclobenzaprine100 q

Dextromethorphan

Brief episodes of psychosis or bizarre behavior reported; possible serotonin syndrome100 b e

Concomitant use contraindicated100 b o

Foods and beverages, tyramine-containing (e.g., cheese, sour cream, Chianti wine, sherry, beer, liqueurs, pickled herring, anchovies, caviar, liver, canned figs, dried fruits, bananas, raspberries, overripe fruit, chocolate, soy sauce, sauerkraut, fava beans, yeast extracts, yogurt, dry sausage, meat extracts or meat prepared with tenderizers)

Serious, sometimes fatal hypertensive reactions (e.g., palpitation, headache, nausea, vomiting, photophobia, diaphoresis) reported100 o

Avoid foods and beverages with high tyramine content (e.g., cheese)100 o

Consult specialized references on food constituents or dietician for specific information on tyramine content of foods and beveragesb o

Ginseng (e.g., Panax ginseng)

Manic-like symptoms reportedw

Guanethidine

Possible moderate to severe hypertension100 b

Concomitant use contraindicated

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of guanethidine100 o

Insulin

Possible hypoglycemic episodes100 b

Use with caution; insulin requirements may decrease during concurrent use100 b

Levodopa-carbidopa

Potential for hypertension, headache, hyperexcitability, and related symptoms100 b

Concomitant use contraindicated

Discontinue phenelzine ≥2 weeks prior to initiation of levodopa100 v

MAO inhibitors (e.g., isocarboxazid, transdermal selegiline, tranylcypromine)

Hypertensive crises or severe seizures may occur with concomitant use100 b

Concomitant use contraindicated100 b

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of another MAO inhibitor, or vice versa100

Meperidine

Severe, generally immediate reactions, including excitation, sweating, rigidity, respiratory depression, seizures, hypertension or hypotension, coma, and death, suggestive of serotonin syndrome reported100 b p

Concomitant use contraindicated100 b o p

Allow at least 2 weeks to elapse between discontinuance of phenelzine and administration of meperidine100 p

Methyldopa

Potential for hypertension, headache, hyperexcitability, and related symptoms100 b

Concomitant use contraindicated100

Modafinil

Acute dyskinesia, confusion, and hyperthermia reported during concurrent use of modafinil and tranylcypromine, another MAO inhibitor; possible increased dopaminergic and serotonergic activitys

Use with cautiont

Reserpine

Possible enhanced serotonergic and noradrenergic effects and severe pressor response100 b

Use with caution100 (see Hypertensive Crises under Cautions)

Sympathomimetic agents (e.g., amphetamine, dopamine, OTC cold, hay fever, or weight-reducing preparations)

Possible hypertensive crisis and/or serotonin syndrome100 o

Concomitant use contraindicated100 o

Allow at least 2 weeks to elapse between discontinuance of phenelzine and initiation of therapy with sympathomimetic agents100

Tryptophan

Possible behavioral and neurologic symptoms suggestive of serotonin syndrome100 b

Concomitant use contraindicated100 b

Commonly used brand name(s)

In the U.S.

  • Nardil

Available Dosage Forms:

  • Tablet

Therapeutic Class: Antidepressant

Pharmacologic Class: Monoamine Oxidase Inhibitor, Nonselective

Proper Use of Nardil

Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. To do so may increase the chance of side effects.

This medicine should come with a medication guide. Read and follow these instructions carefully. Ask your doctor if you have any questions.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage form (tablets):
    • For depression:
      • Adults—At first, 15 milligrams (mg) three times a day. Your doctor may adjust your dose as needed. However, the dose is usually not more than 90 mg per day.
      • Children—Use is not recommended.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Precautions While Using Nardil

It is very important that your doctor check your progress at regular visits to allow for changes in your dose and to check for any unwanted effects.

You will also need to have your blood pressure measured before starting this medicine and while you are using it. If you notice any change to your recommended blood pressure, call your doctor right away. If you have questions about this, talk to your doctor.

When taken with certain foods, drinks, or other medicines, phenelzine can cause very dangerous reactions, such as sudden high blood pressure (also called hypertensive crisis). To avoid such reactions, follow these rules of caution:

  • Do not eat foods that have dopamine and a high tyramine content (most common in foods that are aged or fermented to increase their flavor), such as cheese (especially strong or aged kinds), caviar, sour cream, liver, canned figs, soy sauce, sauerkraut, fava beans, yeasts, and yogurt. Avoid smoked or pickled meat, poultry, or fish, such as sausage, pepperoni, salami, anchovies, or herring. Do not eat dried fruit (such as raisins), bananas, avocados, raspberries, or very ripe fruit.
  • Do not drink alcoholic beverages. This includes Chianti wine, sherry, beer, non-alcohol or low alcohol beer and wine, and liqueurs.
  • Do not eat or drink too much caffeine. Caffeine can be found in coffee, cola, chocolate, tea, and many other foods and drinks. Ask your doctor how much caffeine is safe to use.

Phenelzine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies or to become more depressed. If you or your caregiver notice any of these adverse effects, tell your doctor right away.

Call your doctor or hospital emergency room right away if you have a severe headache, stiff or sore neck, chest pains, fast heartbeat, sweating, dizziness, or nausea and vomiting while you are taking this medicine. These may be symptoms of a serious side effect called hypertensive crisis.

This medicine may cause blurred vision or make some people drowsy or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are unable to see well or not alert.

This medicine will add to the effects of alcohol and other CNS depressants (medicines that slow down the nervous system, possibly causing drowsiness). Some examples of CNS depressants are antihistamines or medicine for hay fever, allergies, or colds; sedatives, tranquilizers, or sleeping medicine; prescription pain medicine or narcotics; medicine for seizures or barbiturates; muscle relaxants; or anesthetics, including some dental anesthetics. Check with your doctor before taking any of the above while you are using this medicine.

Dizziness, lightheadedness, or fainting may occur, especially when you get up suddenly from a lying or sitting position. Getting up slowly may help. When you get up from lying down, sit on the edge of the bed with your feet dangling for 1 or 2 minutes, then stand up slowly. If the problem continues or gets worse, check with your doctor.

Do not stop taking this medicine without checking first with your doctor. Your doctor may want you to gradually reduce the amount you are using before stopping it completely.

Before having any kind of surgery, dental treatment, or emergency treatment, tell the medical doctor or dentist in charge that you are using this medicine or have used it within the past 10 days. Taking phenelzine together with medicines that are used during surgery, dental, or emergency treatments may increase the risk of serious side effects.

Your doctor may want you to carry an identification card stating that you are using this medicine.

This medicine may affect blood sugar levels. If you are diabetic, be especially careful in testing for sugar in your blood or urine. If you have any questions about this, check with your doctor.

After you stop using this medicine, you must continue to exercise caution for at least 2 weeks with your foods, drinks, and other medicines, since these items may continue to react with phenelzine.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

Nardil Dosage and Administration

Initial dose

The usual starting dose of Nardil is one tablet (15 mg) three times a day.

Early phase treatment

Dosage should be increased to at least 60 mg per day at a fairly rapid pace consistent with patient tolerance. It may be necessary to increase dosage up to 90 mg per day to obtain sufficient MAO inhibition. Many patients do not show a clinical response until treatment at 60 mg has been continued for at least 4 weeks.

Maintenance dose

After maximum benefit from Nardil is achieved, dosage should be reduced slowly over several weeks. Maintenance dose may be as low as one tablet, 15 mg, a day or every other day, and should be continued for as long as is required.

Phenelzine Pregnancy Warnings

Animal studies at doses exceeding the recommended human dose showed a significant decrease in the number of viable offspring, and growth retardation. There are no controlled data in human pregnancy. Epidemiological studies suggest an increased risk of congenital abnormalities with antidepressant use during pregnancy as well as an increase in pre-term delivery. Neonates exposed to antidepressants late in the third trimester have shown drug withdrawal symptoms such as dyspnea, lethargy, colic irritability, hypotension or hypertension, and tremor or spasms. AU TGA pregnancy category B3: Drugs which have been taken by only a limited number of pregnant women and women of childbearing age, without an increase in the frequency of malformation or other direct or indirect harmful effects on the human fetus having been observed. Studies in animals have shown evidence of an increased occurrence of fetal damage, the significance of which is considered uncertain in humans. US FDA pregnancy category Not Assigned: The US FDA has amended the pregnancy labeling rule for prescription drug products to require labeling that includes a summary of risk, a discussion of the data supporting that summary, and relevant information to help health care providers make prescribing decisions and counsel women about the use of drugs during pregnancy. Pregnancy categories A, B, C, D, and X are being phased out.

Safety has not been established during pregnancy; do not use during pregnancy, especially during the first and last trimesters, unless the benefit outweighs the risk to the fetus. AU TGA pregnancy category: B3 US FDA pregnancy category: Not assigned

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