M-Phen Syrup Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Fast Heartbeat
  • Low Blood Pressure

If experienced, these tend to have a Less Severe expression

  • A Change In Vision
  • A Skin Rash
  • An Increase In The Thickness Of Lung Secretions
  • Blurred Vision
  • Confusion
  • Constipation
  • Dizziness
  • Drowsiness
  • Dry Mouth
  • Increased Sensitivity Of The Skin To The Sun
  • Inducing Of A Relaxed Easy State
  • Irritability
  • Nausea
  • Nervousness
  • Nightmares
  • Over Excitement
  • Ringing In The Ears
  • Stomach Cramps

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • A Complete Or Partial Collapse Of The Lung Airways Called Atelectasis
  • Abnormal Nervous System Function Affecting Alertness
  • Decreased Lung Function
  • Inducing Of A Relaxed Easy State
  • Orthostatic Hypotension, A Form Of Low Blood Pressure
  • Trouble Breathing

If experienced, these tend to have a Less Severe expression

  • A Change In Vision
  • A Skin Rash
  • Confusion
  • Decreased Appetite
  • Decreased Urine Production
  • Dizziness
  • Dry Mouth
  • Excessive Sweating
  • Fainting
  • Feelings Of Dissatisfaction, Sadness, And Unease
  • Generalized Weakness
  • Head Pain
  • Heart Throbbing Or Pounding
  • Hives
  • Itching
  • Low Blood Pressure
  • Nervousness
  • Stuffy Nose
  • Vomiting

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 Condition Where The Body Is Unable To Maintain Adequate Blood Flow Called Shock
  • A Low Seizure Threshold
  • A Significant Type Of Allergic Reaction Called Anaphylaxis
  • A Type Of Allergic Reaction Called Angioedema
  • A Yellowing Of The Eyes Or Skin From Buildup Of Bilirubin Called Jaundice
  • Abnormal Heart Rhythm
  • Apnea, A Breathing Interruption
  • Asthma
  • Blocked Bowels With Decreased Peristaltic Movement
  • Complete Stoppage Of The Heart
  • Decreased Blood Flow In The Body
  • Decreased Blood Platelets
  • Decreased Function Of The Adrenal Gland
  • Decreased Lung Function
  • Deficiency Of A Substance That Promotes Masculinization
  • Delirium
  • Dependence On Opioid-Type Drugs
  • Difficulty Sleeping
  • Dissociative Disorder
  • Dizziness
  • Excessive Sweating
  • Extrapyramidal Disease, A Type Of Movement Disorder
  • Fast Heartbeat
  • Hallucinations
  • Head Pain
  • High Blood Pressure
  • Hives
  • Loss Of Skin Color
  • Low Levels Of White Blood Cells
  • Lung Failure Causing Loss Of Breath
  • Muscle Tremors
  • Nervousness
  • Neuroleptic Malignant Syndrome, A Reaction Characterized By Fever, Muscle Rigidity And Confusion
  • Pancreatitis
  • Seizures
  • Sleep Apnea
  • Slow Heartbeat
  • Thrombotic Thrombocytopenic Purpura, A Type Of Blood Disorder
  • Very Low Levels Of Granulocytes, A Type Of White Blood Cell

If experienced, these tend to have a Less Severe expression

  • Altered Interest In Having Sexual Intercourse
  • An Extreme Sense Of Wellbeing Called Euphoria
  • Anxious Feelings
  • Decreased Appetite
  • Diarrhea
  • Difficult Or Painful Urination
  • Difficulty Sleeping
  • Double Vision
  • Infertility
  • Irritation Of The Stomach Or Intestines
  • Loss Of Muscle Coordination
  • Low Energy
  • Muscle Tremors
  • Nausea
  • Sensation Of Spinning Or Whirling
  • Skin Inflammation
  • Spasm Of A Bile Duct Tract
  • Temporary Redness Of Face And Neck
  • The Inability To Have An Erection
  • Vomiting

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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.