Skip to Content

Parnate Side Effects

Generic Name: tranylcypromine

Note: This document contains side effect information about tranylcypromine. Some of the dosage forms listed on this page may not apply to the brand name Parnate.

For the Consumer

Applies to tranylcypromine: oral tablet

Along with its needed effects, tranylcypromine (the active ingredient contained in Parnate) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking tranylcypromine:

Incidence not known
  • Absence of or decrease in body movement
  • actions that are out of control
  • agitation
  • anxiety
  • black, tarry stools
  • bleeding gums
  • blood in the urine or stools
  • burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  • chest pain
  • chills
  • confusion
  • confusion about identity, place, and time
  • cough
  • dark urine
  • decrease in frequency of urination
  • decrease in urine volume
  • decreased awareness or responsiveness
  • depression
  • difficulty in passing urine (dribbling)
  • dizziness
  • dry mouth
  • fast, irregular, pounding, or racing heartbeat or pulse
  • fever with or without chills
  • general feeling of tiredness or weakness
  • headache
  • hoarseness
  • hostility
  • hyperventilation
  • increased need to urinate
  • irritability
  • light-colored stools
  • longer than usual time to ejaculation of semen
  • loss of bladder control
  • loss of consciousness
  • lower back or side pain
  • muscle twitching
  • nausea
  • nervousness
  • painful or difficult urination
  • pale skin
  • passing urine more often
  • pinpoint red spots on the skin
  • rapid weight gain
  • restlessness
  • seizures
  • severe sleepiness
  • shakiness and unsteady walk
  • sore throat
  • sores, ulcers, or white spots on the lips or in the mouth
  • sudden jerky movements of the body
  • swelling of the face, ankles, or hands
  • swollen glands
  • talking, feeling, and acting with excitement
  • trouble with sleeping
  • troubled breathing with exertion
  • unsteadiness, trembling, or other problems with muscle control or coordination
  • unusual bleeding or bruising
  • unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness
  • upper right abdominal pain
  • vomiting
  • yellow eyes and skin

Some side effects of tranylcypromine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known
  • Blurred vision
  • constipation
  • continuing ringing or buzzing or other unexplained noise in the ears
  • decreased interest in sexual intercourse
  • diarrhea
  • drowsiness
  • dry mouth
  • hair loss or thinning of the hair
  • hearing loss
  • hives or welts, itching, skin rash
  • inability to have or keep an erection
  • loss in sexual ability, desire, drive, or performance
  • loss of appetite
  • memory loss
  • muscle spasm
  • redness of the skin
  • stomach pain
  • unable to sleep
  • weakness
  • weight loss

For Healthcare Professionals

Applies to tranylcypromine: oral tablet

General

The most important adverse event is hypertensive crisis, which may be fatal. The most common adverse event is insomnia, which can frequently be overcome by giving the last dose of the day no later than 3 pm or reducing dosage.[Ref]

Cardiovascular

Frequency not reported: Edema, flushing, hypertension, hypertensive crisis, hypotension, multiple extrasystoles, pallor, palpitation, postural hypotension/postural hypotension with syncope, severe hypertensive reaction, substernal pain, tachycardia[Ref]

Severe hypertensive reactions have occurred, notably with tyramine containing foods, and are sometimes fatal. Symptoms may include pain and stiffness in the neck, multiple extrasystoles, often with substernal pain, sweating and pallor, sometimes followed by flushing, mydriasis, and photophobia.

Hypotension and postural hypotension were usually temporary, but sometimes required discontinuation of treatment. Blood pressure rapidly returned to pretreatment levels once treatment was stopped.[Ref]

Nervous system

Frequency not reported: Adverse effects on the ability to drive and operate machinery, akathisia, drowsiness, dizziness, dysgeusia, headache, headache without blood pressure elevation, hyperreflexia, lethargy, myoclonic jerks, numbness, nystagmus, paresthesia, sedation, seizures, serotonin syndrome, syncope, throbbing headache, tremor, unusually frequent headaches
Postmarketing reports: Akinesia, ataxia, memory loss[Ref]

Psychiatric

Frequency not reported: Aggravation of coexisting symptoms of depression, agitation, anxiety, discontinuation syndrome, drug dependence, excessive stimulation, hallucinations, hypomania, insomnia, loss of libido, mania, manic symptoms, overexcitement, overstimulation, restlessness, sleep disturbances, suicidal behavior, suicidal ideation/thoughts, withdrawal symptoms
Postmarketing reports: Confusion, disorientation[Ref]

Drug dependence with tolerance to high doses may occur in patients without a history of drug dependence.

Overstimulation included increased anxiety, agitation, and manic symptoms, and was usually a sign of excessive therapeutic action.[Ref]

Gastrointestinal

Frequency not reported: Abdominal pain, constipation, diarrhea, dry mouth, nausea, vomiting
Postmarketing reports: Fissuring in corner of mouth[Ref]

Endocrine

Frequency not reported: Syndrome of inappropriate antidiuretic syndrome (SIADH)[Ref]

Genitourinary

Frequency not reported: Delayed ejaculation, impotence, retarded ejaculation, urinary retention
Postmarketing reports: Urinary frequency, urinary incontinence[Ref]

Hematologic

Frequency not reported: Agranulocytosis, anemia, blood dyscrasias, leukopenia, thrombocytopenia[Ref]

Hepatic

Frequency not reported: Elevated aminotransferases, hepatitis, hepatocellular damage, hepatotoxicity, jaundice[Ref]

Musculoskeletal

Frequency not reported: Muscle spasm, neck stiffness
Postmarketing reports: Localized scleroderma[Ref]

Other

Frequency not reported: Chills, drug tolerance, excessive therapeutic action, fatigue, pain, persistence of MAO inhibition after discontinuation, tinnitus, weakness[Ref]

Ocular

Frequency not reported: Blurred vision, mydriasis, photophobia[Ref]

Dermatologic

Frequency not reported: Alopecia, skin rash/rash, sweating
Postmarketing reports: Flare up of cystic acne, urticaria[Ref]

Metabolic

Frequency not reported: Hypoglycemia, impaired water excretion, significant anorexia, weight gain[Ref]

References

1. Cerner Multum, Inc. "Australian Product Information." O 0

2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

3. "Product Information. Parnate (tranylcypromine)." SmithKline Beecham, Philadelphia, PA.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Hide