Metformin HCL Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • Acute Infection Of The Nose, Throat Or Sinus
  • Diarrhea
  • Feel Like Throwing Up
  • Gas
  • Head Pain
  • Inadequate Vitamin B12
  • Swelling Of The Abdomen
  • Taste Problems
  • Throwing Up
  • Weight Loss

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Trouble Breathing

If experienced, these tend to have a Less Severe expression

  • Chills
  • Constipation
  • Dizzy
  • Excessive Sweating
  • Fingernail And/Or Toenail Disease
  • Flu-Like Symptoms
  • Heart Throbbing Or Pounding
  • Indigestion
  • Inflammation Of The Nose
  • Intense Abdominal Pain
  • Muscle Pain
  • Rash
  • Temporary Redness Of Face And Neck

RARE side effects


If experienced, these tend to have a Severe expression

  • Acute Respiratory Distress Syndrome
  • Increased Blood Acidity Due To High Levels Of Lactic Acid
  • Inflammation Of The Liver With Stoppage Of Bile Flow
  • Liver Damage
  • Low Blood Sugar
  • Megaloblastic Anemia

If experienced, these tend to have a Less Severe expression

  • Drowsiness

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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.