Mirtazapine Tablet Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • Constipation
  • Dizziness
  • Drowsiness
  • Dry Mouth
  • Generalized Weakness
  • High Cholesterol
  • Increased Hunger
  • Weight Gain

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • A High Alanine Transaminase Level
  • A Skin Rash
  • Agitation
  • Confusion
  • Diminished Movement
  • Flu-Like Symptoms
  • High Blood Pressure
  • Hyperactive Behavior
  • Mood Changes
  • Orthostatic Hypotension, A Form Of Low Blood Pressure
  • Trouble Breathing
  • Visible Water Retention

If experienced, these tend to have a Less Severe expression

  • A Feeling Of General Discomfort Called Malaise
  • A Feeling Of Pins And Needles On Skin
  • An Increased Need To Urinate Often
  • Anxious Feelings
  • Backache
  • Cough
  • Decreased Appetite
  • Excessive Thirst
  • Fluid Retention In The Legs, Feet, Arms Or Hands
  • Indifferent Behavior
  • Inflammation Of The Tissue Lining The Sinuses
  • Intense Abdominal Pain
  • Itching
  • Joint Pain
  • Memory Loss
  • Muscle Pain
  • Muscle Tremors
  • Muscle Twitching
  • Muscle Weakness
  • Nausea
  • Nervousness
  • Numbness
  • Sensation Of Spinning Or Whirling
  • Urinary Tract Infection
  • Vomiting
  • Widening Of Blood Vessels

RARE side effects


If experienced, these tend to have a Severe expression

  • A Condition With Muscle Tissue Breakdown Called Rhabdomyolysis
  • A Feeling Of Restlessness With Inability To Sit Still
  • A Form Of Mania That Has A Lower Severity Of Symptoms
  • A Skin Disorder With Blistering And Peeling Skin Called Stevens-Johnson Syndrome
  • A Skin Disorder With Blistering And Peeling Skin Called Toxic Epidermal Necrolysis
  • A Type Of Significant Allergic Skin Reaction Called DRESS Syndrome
  • Abnormal Liver Function Tests
  • Abnormal Muscle Movements
  • Absence Of Menstrual Periods
  • Delusions
  • Depersonalization, A Disconnection Of One's Own Sense Of Reality Or Identity
  • Disturbance In The Ability Of The Eye To Focus
  • Erythema Multiforme, A Type Of Allergic Skin Reaction
  • Extrapyramidal Disease, A Type Of Movement Disorder
  • Feelings Of Hostility
  • Hallucinations
  • Inflammation Of The Skin With Blisters
  • Irritability
  • Kidney Stones
  • Low Amount Of Sodium In The Blood
  • Low Levels Of A Type Of White Blood Cell Called Neutrophils
  • Manic Behavior
  • Pain With Menstruation
  • Priapism, A Prolonged Erection Of The Penis
  • Prolonged QT Interval On EKG
  • Puffy Face From Water Retention
  • Secondary Angle-Closure Glaucoma, A Type Of Eye Disorder
  • Seizures
  • Serotonin Syndrome, A Type Of Disorder With High Serotonin Levels
  • Shingles
  • Suicidal Thoughts
  • The Inability To Have An Erection
  • Torsades De Pointes, A Type Of Abnormal Heart Rhythm
  • Very Low Levels Of Granulocytes, A Type Of White Blood Cell

If experienced, these tend to have a Less Severe expression

  • A Distorted Sense Of Smell Called Parosmia
  • A High Prolactin Level
  • A Loss Of Taste
  • Abnormal Dreams
  • Accidental Falls
  • Aggressive Behavior
  • Breast Fullness Due To Milk Production
  • Poisoning Caused By Anticholinergic Medication
  • Sleepwalking

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.