Entacapone Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • A Type Of Abnormal Movement Disorder Called Dyskinesia
  • Diminished Movement
  • Hallucinations
  • Hyperactive Behavior

If experienced, these tend to have a Less Severe expression

  • Abnormal Color Of Urine
  • Constipation
  • Diarrhea
  • Dizziness
  • Intense Abdominal Pain
  • Low Energy
  • Nausea

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • A Bacterial Infection
  • Fainting
  • Orthostatic Hypotension, A Form Of Low Blood Pressure

If experienced, these tend to have a Less Severe expression

  • A Type Of Stomach Irritation Called Gastritis
  • Agitation
  • Anxious Feelings
  • Backache
  • Drowsiness
  • Dry Mouth
  • Excessive Sweating
  • Gas
  • Indigestion
  • Large Purple Or Brown Skin Blotches
  • Taste Impairment
  • Trouble Breathing
  • Vomiting

RARE side effects


If experienced, these tend to have a Severe expression

  • A Condition Where There Is Formation Of Fibrous Tissue In The Lung Called Pulmonary Fibrosis
  • A Condition With Muscle Tissue Breakdown Called Rhabdomyolysis
  • A Sudden Onset Of Sleep
  • Aggressive Behavior
  • Confusion
  • Delirium
  • Escape Of Fluid Into The Lungs
  • Fever
  • Inflammation Of The Large Intestine
  • Inflammation Of The Liver Called Hepatitis
  • Mental Problems From Taking The Drug
  • Mental Status Changes
  • Neuroleptic Malignant Syndrome, A Reaction Characterized By Fever, Muscle Rigidity And Confusion
  • Paranoia
  • Retroperitoneal Fibrosis
  • X-Ray Results Showing Lung Tissue Changes

If experienced, these tend to have a Less Severe expression

  • An Inability To Control Impulsive Behavior

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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.