Parnate treats depression. This medication can interact with tyramine, found in some cheeses and other foods, which can result in dangerously high blood pressure. Avoid these foods and drinks.

Parnate Overview


Parnate 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. Parnate 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.

Parnate comes in tablet form. It is usually taken 2 times daily, with or without food.

Common side effects include nausea, dry mouth, and dizziness. Parnate can cause drowsiness. Do not drive or operate heavy machinery until you know how it affects you.

How was your experience with Parnate?

First, a little about yourself

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What tips would you provide a friend before taking Parnate?

What are you taking Parnate for?

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  • Other
  • Depressive Disorder
  • Stress Disorders, Post-traumatic

How long have you been taking it?

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  • Less than a week
  • A couple weeks
  • A month or so
  • A few months
  • A year or so
  • Two years or more

How well did Parnate work for you?

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How likely would you be to recommend Parnate to a friend?

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Uses of Parnate

Parnate 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.


Parnate Drug Class

Parnate is part of the drug class:

Side Effects of Parnate

Serious side effects have been reported. See "Drug Precautions" section.

Common side effects include:

  • dry mouth
  • dizziness
  • diarrhea
  • headaches
  • nausea
  • stomach pain
  • constipation
  • insomnia
  • drowsiness
  • weakness
  • low blood pressure when standing or sitting up
  • difficulting urinating
  • shakiness

This is not a complete list of Parnate side effects. Ask your doctor or pharmacist for more information.

Parnate Interactions

Tell your doctor about all of the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Especially tell your doctor if you take:

  • certain other antidepressants including amitriptyline (Elavil), amoxapine, clomipramine (Anafranil), desipramine (Norpramin), doxepin (Sinequan), imipramine (Tofranil), maprotiline, nortriptyline (Pamelor), protriptyline (Vivactil), and trimipramine (Surmontil)
  • amphetamines such as amphetamine (in Adderall), benzphetamine (Didrex), dextroamphetamine (Dexedrine, Dextrostat, in Adderall), and methamphetamine (Desoxyn)
  • bupropion (Wellbutrin, Zyban)
  • buspirone (BuSpar)
  • caffeine (No-Doz, Quick-Pep, Vivarin)
  • cyclobenzaprine (Flexeril)
  • dexfenfluramine (Redux) (not available in the U.S.)
  • dextromethorphan (Robitussin, others)
  • disulfiram (Antabuse)
  • diuretics ('water pills')
  • doxepin cream (Zonalon)
  • insulin and oral medications for diabetes
  • levodopa (Larodopa, in Sinemet)
  • medications for allergies, cough and cold symptoms, and hay fever
  • medications for high blood pressure such as guanethidine (Ismelin) (not available in the U.S.), methyldopa (Aldomet), and reserpine (Serpalan)
  • medications for Parkinson's disease, anxiety, or weight loss (diet pills)
  • medications for seizures such as carbamazepine (Tegretol); narcotic medications for painother MAOIs such as isocarboxazid (Marplan), pargyline (not available in the U.S.), phenelzine (Nardil), procarbazine (Matulane), and selegiline (Eldepryl)
  • meperidine (Demerol)
  • sedatives
  • selective serotonin reuptake inhibitors such as citalopram (Celexa), duloxetine (Cymbalta), escitalopram (Lexapro), fluoxetine (Prozac), fluvoxamine (Luvox), paroxetine (Paxil), and sertraline (Zoloft)
  • sleeping pills
  • tranquilizers
  • medications containing alcohol (Nyquil, elixirs, others)
  • medications for nausea or mental illness

This is not a complete list of Parnate drug interactions. Ask your doctor or pharmacist for more information.

Parnate can remain in your body for several weeks after you stop taking it. Tell your doctor or pharmacist that you recently stopped taking Parnate before you start taking any new medications.

Parnate Precautions

Serious side effects have been reported with Parnate including:

  • hypertensive crisis, a life threatening increase in blood pressure. This sometimes fatal side effect can result from taking MAO inhibitors like Parnate with certain drugs and foods (see "Drug Interactions" and "Food Interactions" sections). Symptoms include:
    • headaches
    • stiff or sore neck
    • nausea
    • vomiting
    • palpitations
    • sweating, sometimes with fever and cold, clammy skin
    • either fast or slow heart beat
    • chest pain
    • chest tightness
    • dilated pupils

Get medical help right away if you experience these symptoms.

  • severe headaches. If you have frequent headaches, talk to your doctor before starting Parnate as headaches are one of the first symptoms of a hypertensive crisis and you may miss this warning sign.
  • suicidal thoughts or behavior. Antidepressants may increase suicidal thoughts or actions in some children, teenagers, and young adults within the first few months of treatment.
    • Pay close attention to any changes, especially sudden changes, in mood, behaviors, thoughts, or feelings. This is very important when an antidepressant medicine is started or when the dose is changed.
    • Call the healthcare provider right away to report new or sudden changes in mood, behavior, thoughts, or feelings.
  • low blood pressure, especially when getting up from a lying position.

Parnate can cause drowsiness. Do not drive or operate heavy machinery until you know how it affects you.

Do not take Parnate if you:

  • are allergic to any ingredient in Parnate 
  • have heart disease
  • have high blood pressure
  • have a type of adrenal tumor known as pheochromocytoma
  • have a history of a stroke
  • have had a transient ischemic attack (TIA)
  • have had bleeding in the brain
  • are going to have surgery 
  • have liver disease
  • are taking drugs that should not be taken during treatment with Parnate 

Parnate Food Interactions

Tyramine is a naturally occurring compound found in some cheeses and other foods that may cause dangerously high blood pressure in people taking monoamine oxidase inhibitors (MAOIs) like Parnate.

You should avoid eating very large amounts of foods containing high amounts of tyramine such as:

  • cheese (particularly strong or aged varieties)
  • sour cream
  • Chianti wine
  • sherry
  • beer (including non-alcoholic beer)
  • liqueurs
  • pickled herring
  • anchovies
  • caviar
  • liver
  • canned figs
  • raisins
  • bananas
  • avocados (particularly if overripe)
  • chocolate
  • soy sauce
  • sauerkraut
  • the pods of broad beans (fava beans)
  • yeast extracts
  • yogurt
  • meat extracts
  • meat prepared with tenderizers
  • dry sausage

Some of the signs and symptoms of dangerously high blood pressure (hypertensive crisis) are:

  • severe headache
  • vision problems
  • confusion
  • stupor (mental numbness)
  • coma
  • seizures
  • chest pain
  • unexplained nausea or vomiting
  • stroke-like symptoms (sudden numbness or weakness - especially on one side of the body)

Get emergency medical help if you experience these symptoms.

Inform MD

Before taking Parnate tell your doctor about all of your medical conditions. Especially tell your doctor if you:

  • have heart, liver, or kidney disease
  • have high blood pressure
  • have had a stroke or heart attack
  • have pheochromocytoma
  • have frequent headaches
  • have or have family members with bipolar disorder
  • have tried to commit suicide
  • have epilepsy
  • have a scheduled surgery or radiology procedure
  • have hyperthyroidism
  • drink alcohol
  • are pregnant or breastfeeding

Tell your doctor about all of the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements.

Parnate and Pregnancy

Tell your doctor if you are pregnant or plan to become pregnant. It is not known if Parnate will harm your unborn baby.

Parnate and Lactation

Tell your doctor if you are breastfeeding or plan to breastfeed. It is not known if Parnate is excreted in human breast milk or if it will harm your nursing baby.

Parnate Usage

  • Take Parnate exactly as prescribed.
  • Parnate comes in tablet form and is usually taken twice a day.
  • It can be taken with or without food.
  • If Parnate upsets your stomach, try taking it with food.
  • If you miss a dose, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and take your next dose at the regular time. Do not take two doses of Parnate at the same time.

Parnate Dosage

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

The Parnate 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 effective dosage is 30 mg per day, usually given in divided doses. If there are no signs of improvement after a reasonable period (up to 2 weeks), then the dosage may be increased in 10 mg per day increments at intervals of 1 to 3 weeks; the dosage range may be extended to a maximum of 60 mg per day from the usual 30 mg per day.

Parnate Overdose

If you take too much Parnate, call your healthcare provider or local Poison Control Center, or seek emergency medical attention right away.

If Parnate is administered by a healthcare provider in a medical setting, it is unlikely that an overdose will occur. However, if overdose is suspected, seek emergency medical attention.

Other Requirements

  • Store between 15° and 30°C (59° and 86°F).
  • Keep this and all medications out of the reach of children.

Parnate FDA Warning

Suicidality and Antidepressant Drugs

Antidepressants increased the risk compared to placebo of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults in short-term studies of major depressive disorder (MDD) and other psychiatric disorders. Anyone considering the use of Parnate or any other antidepressant in a child, adolescent, or young adult must balance this risk with the clinical need. Short-term studies did not show an increase in the risk of suicidality with antidepressants compared to placebo in adults beyond age 24; there was a reduction in risk with antidepressants compared to placebo in adults aged 65 and older. Depression and certain other psychiatric disorders are themselves associated with increases in the risk of suicide. Patients of all ages who are started on antidepressant therapy should be monitored appropriately and observed closely for clinical worsening, suicidality, or unusual changes in behavior. Families and caregivers should be advised of the need for close observation and communication with the prescriber. Parnate is not approved for use in pediatric patients.