Skip to content
My WebMD Sign In, Sign Up
dantrolene

Side Effects

List dantrolene side effects by likelihood and severity.

The following side effects are associated with dantrolene:

Common side effects of dantrolene:

  • DizzyLess Severe
  • DrowsinessLess Severe
  • Low EnergyLess Severe
  • Muscle WeaknessLess Severe
  • Not Feeling WellLess Severe

Infrequent side effects of dantrolene:

  • Bloody UrineSevere
  • ConfusedSevere
  • DepressionSevere
  • Difficult or Painful UrinationSevere
  • Escape of Fluid into the LungsSevere
  • Hepatitis caused by DrugsSevere
  • HivesSevere
  • Inflammation of a VeinSevere
  • Inflammation of Skin caused by an AllergySevere
  • ItchingSevere
  • RashSevere
  • Reaction due to an AllergySevere
  • SeizuresSevere
  • Significant Decrease in Lung FunctionSevere
  • ChillsLess Severe
  • Chronic Trouble SleepingLess Severe
  • DiarrheaLess Severe
  • Difficulty SwallowingLess Severe
  • Double VisionLess Severe
  • Feel Like Throwing UpLess Severe
  • FeverLess Severe
  • Frequent UrinationLess Severe
  • Head PainLess Severe
  • Incomplete or Infrequent Bowel MovementsLess Severe
  • Loss of AppetiteLess Severe
  • NervousLess Severe
  • Problems with Bladder ControlLess Severe
  • Problems with EyesightLess Severe
  • Stomach CrampsLess Severe
  • Taste ProblemsLess Severe
  • Throwing UpLess Severe

Rare side effects of dantrolene:

  • Abnormal Liver Function TestsSevere
  • AnemiaSevere
  • Bleeding of the Stomach or IntestinesSevere
  • Decreased Blood PlateletsSevere
  • Decreased White Blood CellsSevere
  • Heart FailureSevere
  • Increased Eosinophils in the BloodSevere
  • Inflammation of the Covering of the Heart or PericardiumSevere
  • Life Threatening Allergic ReactionSevere
  • Low Blood Counts due to Bone Marrow FailureSevere
  • Malignant LymphomaSevere
  • Severe DiarrheaSevere
  • Yellowing of Skin or Eyes from Liver ProblemsSevere
  • A Breaking Out of the Skin Resembling AcneLess Severe
  • BackacheLess Severe
  • Changes in Blood PressureLess Severe
  • Excessive HairinessLess Severe
  • Excessive SweatingLess Severe
  • Excessive Watery EyesLess Severe
  • Fast HeartbeatLess Severe
  • Inability to have an ErectionLess Severe
  • Muscle PainLess Severe
  • The Appearance of Crystals in the UrineLess Severe

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, expect 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.

More about Drugs and Medications

Newsletters

Subscribe to free WebMD newsletters.

  • WebMD Daily

    WebMD Daily

    Subscribe to the WebMD Daily, and you'll get today's top health news and trending topics, and the latest and best information from WebMD.

  • Men's Health

    Men's Health

    Subscribe to the Men's Health newsletter for the latest on disease prevention, fitness, sex, nutrition, and more from WebMD.

  • Women's Health

    Women's Health

    Subscribe to the Women's Health newsletter for the latest on disease prevention, fitness, sex, diet, anti-aging, and more from WebMD.

By clicking Submit, I agree to the WebMD Terms & Conditions & Privacy Policy

URAC: Accredited Health Web Site TRUSTe online privacy certification HONcode Seal AdChoices