Thioridazine HCL Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • A Feeling Of Restlessness With Inability To Sit Still
  • Blurred Vision
  • Extrapyramidal Disease, A Type Of Movement Disorder
  • Fainting
  • Low Blood Pressure
  • Pigmentary Retinopathy
  • Tardive Dyskinesia, A Disorder Characterized By Involuntary Movements Of The Face, Mouth And Tongue

If experienced, these tend to have a Less Severe expression

  • Constipation
  • Decreased Sweating
  • Dizziness
  • Drowsiness
  • Dry Mouth
  • Excessive Saliva Production
  • Orthostatic Hypotension, A Form Of Low Blood Pressure
  • Stuffy Nose

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Contact Dermatitis, A Type Of Skin Rash That Occurs From Contact With An Offending Substance
  • Difficult Or Painful Urination
  • Increased Sensitivity Of The Skin To The Sun

If experienced, these tend to have a Less Severe expression

  • Abnormal Sexual Function
  • Breast Fullness Due To Milk Production
  • Breast Pain
  • Breastmilk Production Not Associated With Childbirth Or Nursing
  • Fever
  • Irregular Periods
  • Weight Gain

RARE side effects


If experienced, these tend to have a Severe expression

  • A Blockage Of The Bile Duct That Resulting In High Bilirubin Levels
  • A Change In Vision
  • Heat Stroke
  • Low Body Temperature
  • Low Levels Of A Type Of White Blood Cell Called Neutrophils
  • Low Levels Of White Blood Cells
  • Melanosis, A Condition Where Increased Melanin Results In Hyperpigmentation
  • Neuroleptic Malignant Syndrome, A Reaction Characterized By Fever, Muscle Rigidity And Confusion
  • Priapism, A Prolonged Erection Of The Penis
  • Prolonged QT Interval On EKG
  • Seizures
  • 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

  • Visual Sensitivity To Light

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

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.